Pregnancy test?

Question

If you just take a test anytime ...is it still accurate? or can you only take it after your missed period? and how far along do you have to be to get a positive.. is there anybody out there where they had to go to the doc. to get the pregnancy confirmed, because you kept getting negative test.. how far along where you ?

Answer 1

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.

Do I have to test with my first morning urine (FMU)? Not necessarily. In general, FMU is the most concentrated urine of the day and thus more likely to have built up more hCG in it. If you are testing early (before 14 DPO), the HPT is more likely to detect the hCG in your FMU. After 14 DPO there should be enough hCG to be detected at any time of day. Some women have better luck with second morning urine (SMU.) A good rule of thumb: hold your pee for 3-4 hours (and drink as little as possible!) Then pee in a cup. If your urine looks nice and yellow, it's concentrated enough for testing (see FAQ 16 below for more info on peeing in cups vs. peeing on sticks.) If it looks diluted, dump it and try again later.

http://www.peeonastick.com

Answer 2

It used to be the first morning urine you should use. I tested positive both times in the middle of the day. Once I was late and the other time I was not yet due for 3-4 days. I think it is best to wait until you are just about due or late.

Answer 3

Pregnancy tests usually advise you to wait until you've missed a period before taking the test because it takes that long to create enough hormones to register on the test.

Answer 4

its viable, a few men and women dont discover out they're pregnant till no less than 6 weeks long gone that's most likely whilst youre approximately two weeks past due. retest in a couple of days if its nonetheless terrible then move for your physician and get a blood scan performed.

Answer 5

the pregnancy tests are less and less accurate the earlier you do them.