how soon can a pregnancy test detect the hormone?

Question

and which test is quickest?

Answer 1

ept is the earliest one I know of, which can be used four days before you expect your period to start. But four days before the chances of the test being accurate are only 52%. Three days it goes to like 73%. Two days it jumps to 89%. One day, it's in the 90s. If you can wait until the day your period is supposed to start to take the test, your results should be 99% accurate. Good luck!

Answer 2

Apparently you can get early detector test for before your period is due but if you read the box only a small percentage of women who DO turn out to be pregnant get an early positive result. Ive heard that the best way is a blood result from the doctor who can confirm it 7-10 days after concieving, although Im sure most GP's would just ask us to be patient and wait until we are over due our period. I got a pregnancy test a few days after my missed period but had to go through another two before I got a positive result(I was a week late at that point) Not all women carry a lot of the hormone detected in our urine. But the best time to test is early morning when our urine is most concertrated...then we have the best chance of a positive result. goodluck, hope you get what you want!!! x

Answer 3

Usually the first day of your missed period, however, this is not always true. I took a test when I was one day late and it was negative. I took one at 8 days late and it was positive. Now I'm 21 weeks along! The blood test at the doctor's office is not more accurate than the home test no matter what anyone tells you. I had one when I got pregnant before and it showed up negative. The very next day I took a home test and it was positive. I miscarried that time, but I learned the blood test isn't as great as everyone thinks.

Answer 4

http://www.peeonastick.com

How soon can I test? Well, first you gotta know how the test works. Briefly: the home pregnancy test (HPT) works by detecting a hormone called human chorionic gonadotropin (hCG.) When an egg is fertilized, it takes about 6 to 12 days to implant in the uterus, and then it begins to secrete hCG. It takes another day or two for enough hCG to build up and make its way into your pee. So, generally speaking, the earliest you can expect a positive HPT is 8 days past ovulation ("DPO") and the latest would be about 16 DPO. It is possible to get a positive test earlier or later, but not as common. In my experience, if you use a sensitive "early" test (anything that detects 25 mIU/mL of hCG or less) you can test around 12-14 DPO and feel reasonably secure with your results (the later you test, the more secure you can feel in its accuracy.)

If you do not chart or monitor your fertility in any way, and you think you may have conceived, you should wait 19 days (or longer) after having sex to test. Why 19?! Sperm can live approximately 5 days in the proper environment; if the sperm managed to live until you popped an egg, the actual conception could have taken place several days after the sex act that got the sperm there. To make sure you're not testing too early, assume the sperm had very long lives (5 days is considered a very long sperm life) and that conception occurred then. Then allow 14 days for the embryo to implant and develop enough hCG to show up on a pregnancy test (96% of pregnant women will test positive by then.)

Note: some HPT's say "test 5 days before your period is due!" or some such thing. Please note they are assuming a textbook 28-day cycle, with ovulation on Day 14. "5 days before your period is due" thus really "translates" to 10 DPO.

Essentially, you should remember that your high school biology textbook was WRONG. NOT all women have 28-day cycles and NOT all women ovulate on Day 14. For more info on this type of thing, see the Fertility Info section.

Here's an example. This is the textbook-perfect 28-day cycle with ovulation occurring on day 14 (in pink.) 10 DPO and later are reasonable days for testing (in green.) This is the cycle the HPT companies have in mind when they say "test 5 days before your period is due!"



Well, not everyone's body works this way. Here's another 28-day cycle-- but this one has ovulation occurring a little bit later, still well within the normal range. Watch what happens to your (green) testing opportunities!



All of a sudden, "5 days before your period is due!" is way too early for you to expect a positive test! (I tend to ovulate later myself, so by the time the "gold standard" of testing at 14 DPO is applicable, my period is already 3 days late! I needed to use an "early detection" test on the first day of my missed period. A "regular" test would probably have been negative-- even though my daughter is living proof that I was, indeed, pregnant ;)

Of course, it works in reverse, too. If you're an early ovulator, you're lucky! Check it out:



In this scenario, you could test even sooner than 5 days before your expected period.

Ultimately, it's important to remember that implantation is a variable thing. You may be able to detect a pregnancy very early on, but then again, you may not! If you can't, don't despair.
Surprisingly, cheap tests purchased at dollar stores or on the Internet are often more sensitive and reliable than expensive store brands. HPT's are like soda: very cheap to make, and marked up quite a bit for retail.

Answer 5

Some tests can detect HCG 5 days before your period is due, others you have to wait one day after your period was due. There are "sensitive" tests on the market - 5 day before period. Look for ones with around 20 iU/L written on the box -these are very sensitive to detect HCG levels but some are around the 25-30 iU/L which arent as sensitive and need more presence of HCG in your urine - after your period was due. The longer you wait after your period was due the better. Most HPT advise if you get a negative reading to test again in 7 days, Good Luck!

Answer 6

The hormone can be detected in pregnancy tests approx 8 days after conception.

Answer 7

The test results are diffrent for every woman. If the day ur period is due the levels are high enough then u could test positive that day. However, a lot of women find doing a test a week or two after their due date (period) is when they get a reliable result.
All the kits are about the same.
If in doubt see ur doctor.

Answer 8

I think that once you are pregnant the test can detect it. If it says you are pregnant than you definitely are pregnant, however if it says your not you still might be pregnant.
But, to answer your question more clearly, i think they say to test within 5 days of missing your period.

Answer 9

some say 4 days before period due others say on the day,check the box. they all take about a min for results even though this seems like forever to wait at the time

Answer 10

it is diff. 4 everyone, i had to miss 2 periods be4 i showed up on blood or urine preg. test. I know now i am but i had 4 neg. be4 finally a positive. good luck if you wnna be preg.