12 thoughts on “Pregnancy Test Before Missed Period Accuracy

  1. Do you feel pregnancy tests mis advertise?
    I took a pregnancy test (99% accurate!) two days before my due period. Negative. I tested again 2 days into my missed period. Negative. I tested finally a week later and got a positive.

    I looked on previous questions and saw that other people have had false negatives. But on the boxes they make it sound like false negatives are very rare. So am I that rare 1%? My nurse friend said you should just test a week after a missed period, as that is a better well to tell. Have any of you received false negatives?

    • If you read all the fine print, you’ll find that “99% accurate” doesn’t mean at all that 99% of all women will get an accurate result that early. No where does it say that 99% will get an accurate result when testing before their period is due or even the day it’s due… just that the test is 99% accurate (in detecting pregnancy hormone levels of over 30), then they also suggest you can test as early as 5 days before your expected period – something that has absolutely nothing to do with the 99% accuracy result claim at all!

      Testing when your period is due seems reasonable – many can get a positive that early. Testing before then seems to be a waste of time even with early tests although I’ve heard of a few that have gotten positives a couple of days before. (With both my pregnancies I tested the day my period was due and I didn’t even need to wait 2 minutes to see an instant and definitive positive – I suspect I could have tested 1-2 days earlier and still gotten a positive. But I also suspect I ovulate a bit earlier in my cycle than most) Most should be able to get an accurate result within 7 days late for their period though.

  2. What does it mean on pregnancy tests when it tells you to take the test “a week BEFORE your missed period”?
    I was looking at pregnancy tests the other day and read on the box to take the test a certain amount of days “BEFORE your missed period”. To me, that doesn’t make sense. But what does it actually mean?

    • it depends on when you concieved to wether you would get a positive result. i took 1 of those tests and got a positive 5 days before my period. it turns out i concieved just after my last period finished. it does give a percentage of accuracy on the box depending on the brand. good luck.x

  3. When is the best time to have a professional pregnancy test?
    I know that the recommended time to check on a home pregnancy test is 6 days before a missed period, but is there a difference between a home and professional pregnancy test?

    • By professional, do you mean a blood test, or do you mean a urine test at the doctors office?

      Most doctors tend to use urine test strips that are actually less expensive than pharmacy brands. Most big name pharmacy brands can detect levels above 25, and a lot of doctors brands can only detect levels above 50. When a home test says it can test 6 days before a missed period, the accuracy level is only about 50%, so 50% of pregnant women won’t test positive 6 days before their period.

      In terms of blood test, a blood test can detect hcg within 24 hours of implantation. Implantation occurs between 6-12 days after ovulation (so about 2-8 days before your period). A urine test can detect hcg levels about 2-3 days after implantation, so between 5 days before your period to one day after your expectant period.

      Realistically to get accurate results on either a doctors blood test, doctors urine test, or a home test, you need to wait til your period is late.

  4. How many days after a missed period is best to wait before a home pregnancy test?
    I am exhibiting possible signs of pregnancy, but I am also one month from my last period. I thought I was late, but since February is shorter, I’ve decided to give myself a couple extra days. I took a pregnancy test two days ago, but the tests that test before a missed period have a lower accuracy rate of catching the hormone. That test was negative, but the symptoms I’m having are a little different than my normal period symptoms.

    Anyway, I’m wondering how many days is the best to wait after my missed period so I can take another test? In other words, when is the accuracy rate highest? (Yes, I will see a doctor if my period doesn’t arrive and my symptoms continue)
    I will take it in the morning when I first get up. But, I wanted to know if the accuracy rate of the test increases if I wait a few days instead of just one.

    • if your boobs are getting bigger and you haven’t had your period in a week or so take another test if it comes back negative go see your doctor right away cause they are not very accurate those pregnancy tests.

      Good luck !
      Hope this helps!

  5. When is a good time to take a pregnancy test?
    When can you take a pregnancy test? Is it best to wait after your missed period? Are the results of testing before a missed period very accurate?
    I took an ept test and it came out positive. I took another test and it came back negative, but it wasn’t an ept test. Could I be pregnant? My period should start tomorrow. What should I do?

    • How soon after a missed period can I take a home pregnancy test and get accurate results?
      http://www.4woman.gov/pregnancy/index.cfm

      Many home pregnancy tests (HPTs) claim to be 99% accurate on the day you miss your period. But research suggests that most HPTs do not consistently spot pregnancy that early. And when they do, the results are often so faint they are misunderstood. If you can wait one week after your missed period, most home pregnancy tests will give you an accurate answer. Ask your doctor for a more sensitive test if you need to know earlier.

      When a home pregnancy test will give an accurate result depends on many things. These include:

      * How long it takes for the fertilized egg to implant in the uterus after ovulation. Pregnancy tests look for the hormone human chorionic gonadotropin (hCG) that is only produced once the fertilized egg has implanted in the uterine wall. In most cases, this happens about 6 days after conception. But studies show that in up to 10 percent of women, the embryo doesn’t implant until much later, after the first day of the missed period. So, home pregnancy tests will be accurate as soon as one day after a missed period for some women but not for others.
      * How you use them – Be sure to follow the directions and check the expiration date.
      * When you use them – The amount of hCG in a pregnant woman’s urine increases with time. So, the earlier after a missed period you take a HPT, the harder it is to spot the hCG. If you wait one week after a missed period to test, you are more apt to have an accurate result. Also, testing your urine first thing in the morning may boost the accuracy.
      * Who uses them – The amount of hCG in the urine at different points in early pregnancy is different for every woman. So, some women will have accurate results on the day of the missed period while others will need to wait longer.
      * The brand of test – Some home pregnancy tests are more sensitive than others. So, some tests are better than others at spotting hCG early on.

      Pregnancy Tests

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      * How do pregnancy tests work?
      * What’s the difference between pregnancy tests that check urine and those that test blood? Which one is better?
      * How do you do a home pregnancy test?
      * How accurate are home pregnancy tests?
      * Which brand of pregnancy test is the most accurate?
      * How soon after a missed period can I take a home pregnancy test and get accurate results?
      * I got a negative result on a home pregnancy test. Might I still be pregnant?
      * Can anything interfere with home pregnancy test results?

      How do pregnancy tests work?
      photo of woman looking at time
      Am I Pregnant?

      Pregnancy tests look for a special hormone in the urine or blood that is only there when a woman is pregnant. This hormone, human chorionic gonadotropin (hCG), can also be called the pregnancy hormone.

      The pregnancy hormone, hCG, is made in your body when a fertilized egg implants in the uterus. This usually happens about 6 days after conception. But studies show that the embryo doesn’t implant until later in some women. The amount of hCG increases drastically with each passing day you are pregnant.

      Many home pregnancy tests claim they can tell if you’re pregnant on the day you expect your period. But a recent study shows that most don’t give accurate results this early in pregnancy. Waiting one week after a missed period will usually give a more accurate answer.
      What’s the difference between pregnancy tests that check urine and those that test blood? Which one is better?

      There are two types of pregnancy tests. One tests the blood for the pregnancy hormone, hCG. The other checks the urine for this hormone. You can do a urine test at home with a home pregnancy test. You need to see a doctor to have blood tests.

      These days, most women first use home pregnancy tests (HPT) to find out if they are pregnant. HPTs are inexpensive, private, and easy to use. Urine tests will be able to tell if you’re pregnant about 2 weeks after ovulation. Some more sensitive urine tests claim that they can tell if you are pregnant as early as one day after a missed period.

      If a HPT says you are pregnant, you should call your doctor right away. You doctor can use a more sensitive test along with a pelvic exam to tell for sure if you’re pregnant. Seeing your doctor early on in your pregnancy will help you and your baby stay healthy.

      Doctors use two types of blood tests to check for pregnancy. Blood tests can pick up hCG earlier in a pregnancy than urine tests can. Blood tests can tell if you are pregnant about 6 to 8 days after you ovulate (or release an egg from an ovary). A quantitative blood test (or the beta hCG test) measures the exact amount of hCG in your blood. So it can find even tiny amounts of hCG. This makes it very accurate. Qualitative hCG blood tests just check to see if the pregnancy hormone is present or not. So it gives a yes or no answer. The qualitative hCG blood test is about as accurate as a urine test.
      How do you do a home pregnancy test?

      There are many different types of home pregnancy tests, or HPTs. Most drugstores sell HPTs over-the-counter. They cost between $8 and $20 depending on the brand and how many tests come in the box.

      Most popular HPTs work in a similar way. The majority tell the user to hold a stick in the urine stream. Others involve collecting urine in a cup and then dipping the stick into it. At least one brand tells the woman to collect urine in a cup and then put a few drops into a special container with a dropper. Testing the urine first thing in the morning may help boost accuracy.

      Then the woman needs to wait a few minutes. Different brands instruct the woman to wait different amounts of time. Once the time has passed, the user should inspect the “result window.” If a line or plus symbol appears, you are pregnant. It does not matter how faint the line is. A line, whether bold or faint, means the result is positive.

      Most tests also have a “control indicator” in the result window. This line or symbol shows whether the test is working or not. If the control indicator does not appear, the test is not working properly. You should not rely on any results from a HPT that may be faulty.

      Most brands tell users to repeat the test in a few days, no matter what the results. One negative result (especially soon after a missed period) does not always mean you’re not pregnant. All HPTs come with written instructions. Most tests also have toll-free phone numbers to call incase of questions about use or results.
      How accurate are home pregnancy tests?

      Home pregnancy tests (HPTs) can be quite accurate. But the accuracy depends on many things. These include:

      * How you use them – Be sure to follow the directions and check the expiration date.
      * When you use them – The amount of hCG or pregnancy hormone in your urine increases with time. So, the earlier after a missed period you take the test the harder it is to spot the hCG. If you wait one week after a missed period to test, you are more apt to have an accurate result. Also, testing your urine first thing in the morning may boost the accuracy.
      * Who uses them – The amount of hCG in the urine is different for every pregnant woman. So, some women will have accurate results on the day of the missed period while others will need to wait longer.
      * The brand of test – Some home pregnancy tests are more sensitive than others. So, some tests are better than others at spotting hCG early on.

      Many HPTs claim to be 99% accurate on the day you miss your period. But research suggests that most HPTs do not consistently spot pregnancy that early. And when they do, the results are often very faint.

      In a 2004 study, researchers tested the accuracy of 18 HPTs sold in retail stores. They found that only one brand consistently detected the low levels of hCG usually present on the first day of the missed period. This was the First Response, Early Result Pregnancy Test. The other tests missed up to 85% of pregnancies on the first day of the missed period. Most tests accurately confirmed pregnancies one week after the missed period.
      Which brand of pregnancy test is the most accurate?

      Some brands of tests can pick up lower levels of hCG than others. But limited research makes it impossible to say for sure which one is the best. Even so, two studies suggest that First Response, Early Result Pregnancy Test may be more sensitive than others. So for women who want test early, this is probably the best product.
      How soon after a missed period can I take a home pregnancy test and get accurate results?

      Many home pregnancy tests (HPTs) claim to be 99% accurate on the day you miss your period. But research suggests that most HPTs do not consistently spot pregnancy that early. And when they do, the results are often so faint they are misunderstood. If you can wait one week after your missed period, most home pregnancy tests will give you an accurate answer. Ask your doctor for a more sensitive test if you need to know earlier.

      When a home pregnancy test will give an accurate result depends on many things. These include:

      * How long it takes for the fertilized egg to implant in the uterus after ovulation. Pregnancy tests look for the hormone human chorionic gonadotropin (hCG) that is only produced once the fertilized egg has implanted in the uterine wall. In most cases, this happens about 6 days after conception. But studies show that in up to 10 percent of women, the embryo doesn’t implant until much later, after the first day of the missed period. So, home pregnancy tests will be accurate as soon as one day after a missed period for some women but not for others.
      * How you use them – Be sure to follow the directions and check the expiration date.
      * When you use them – The amount of hCG in a pregnant woman’s urine increases with time. So, the earlier after a missed period you take a HPT, the harder it is to spot the hCG. If you wait one week after a missed period to test, you are more apt to have an accurate result. Also, testing your urine first thing in the morning may boost the accuracy.
      * Who uses them – The amount of hCG in the urine at different points in early pregnancy is different for every woman. So, some women will have accurate results on the day of the missed period while others will need to wait longer.
      * The brand of test – Some home pregnancy tests are more sensitive than others. So, some tests are better than others at spotting hCG early on.

      I got a negative result on a home pregnancy test. Might I still be pregnant?

      Yes. So, most HPTs suggest women take the test again in a few days or a week.

      Every woman ovulates at different times in her menstrual cycle. Plus, embryos implant in the uterus at different times. So, the accuracy of HPT results varies from woman to woman. Other things can also affect the accuracy.

      Sometimes women get false negative results (when the test says you are not pregnant and you are) when they test too early in the pregnancy. Other times, problems with the pregnancy can affect the amount of hCG in the urine.

      If your HPT is negative, test yourself again in a few days or 1 week. If you keep getting a negative result but think you are pregnant, talk with your doctor right away.
      Can anything interfere with home pregnancy test results?

      Most medicines, over-the-counter and prescription, including birth control pills and antibiotics, should not affect the results of a home pregnancy test. Only medicines that have the pregnancy hormone hCG in them can give a false positive test result. A false positive is when a test says you are pregnant when you’re not.

      Sometimes medicines containing hCG are used to treat infertility (not being able to get pregnant). Alcohol and illegal drugs do not affect HPT results. But women who may become pregnant should not use these substances.
      For More Information…

      For more information on pregnancy tests, contact the National Women’s Health Information Center at 1-800-994-9662

      Videos about childbirth, pregnancy, and parenting, birth control.

      http://www.youtube.com/watch?v=rGT5wLTQeSg
      http://www.youtube.com/watch?v=nwQiZBgCDjE
      http://www.youtube.com/results?search=childbirth%20birth&sort=video_avg_rating
      http://video.google.com/videosearch?q=childbirth
      http://video.yahoo.com/video/search?p=childbirth&x=30&y=16
      http://video.google.com/videosearch?q=parenting
      http://video.google.com/videosearch?q=teen+pregnancy
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      Where can I go to get free or reduced-cost prenatal care?
      You can call this number if you need free birth control help, too!
      Women in every state can get help to pay for medical care during their pregnancies. This prenatal care can help you have a healthy baby. Every state in the United States has a program to help. Programs give medical care, information, advice and other services important for a healthy pregnancy.
      To find out about the program in your state:
      ·Call 1-800-311-BABY (1-800-311-2229) This toll-free telephone number will connect you to the Health Department in your area code
      ·For information in Spanish, call 1-800-504-7081
      ·Call or contact your local Health Department.

  6. Can you go to the hospital and get a preg test before your missed period?
    Will doctors even give you a pregnancy test if you aren’t due for your period yet, if you think you might be pregnant? Or do you have to wait until the day of your missed period or you are late?

    • hey. “clear blue digital” gives results 4 days before your period is due, this is the earliest test on the market, but it is only 93% accurate, as this sounds high, it gets to 99.9% accuracy from the day of your missed period, so even though waiting is hurrendous you might be better to wait so then you dont have to go through the “ok, got a negative result, but there is a 7% chance it could be positive later in the month”. good luck xx

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