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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.)

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2007-04-10 08:34:47 · answer #1 · answered by ஐ♥Julian'sMommy♥ஐ 7 · 0 1

Hello as a mom of 2 all I can say is it probably takes at least 3 weeks to know . A few ways of knowing when to take a test is when you miss a period , or if your breast are sore, your getting morning sickness, your tired than if those happen take a test e.p.t test are good but try to do it your first pee in the morning and read the directions carefully their sensitive well, good luck.

2007-04-10 07:41:43 · answer #2 · answered by candy 1 · 0 0

Take the test after the 1st day of your missed period. There are some tests that will tell you 5 days before your missed period but they cost more. Just fallow the directions on the box.

2007-04-10 07:36:27 · answer #3 · answered by Anonymous · 0 0

test can usually give an accurate result from the first day of a missed period but no sooner as the hormone levels in your body have to be strong enough for the test to pick up.
hope this helps

2007-04-10 09:39:25 · answer #4 · answered by Sam W 3 · 0 0

on the box it sez preferably when you missed period then take a test. i waited a week, still neg, 2 weeks, still neg, so on until the following month and then it finally shown up positive. Took the test in Aug. and conception was on the 4th of july. some girls just take longer for theirs to show up i suppose.

2007-04-10 07:40:13 · answer #5 · answered by jessnclh 3 · 0 0

try about 5 weeks after intercourse

2007-04-10 07:36:32 · answer #6 · answered by jennifer l 1 · 0 0

You can not tell until you get a pregnancy test five days before your missed period,or even after your missed period

2007-04-10 07:36:45 · answer #7 · answered by Anonymous · 0 0

4 weeks

2007-04-10 07:36:15 · answer #8 · answered by tanner 7 · 0 0

I agree with The Pen. If you want to become pregnant, I cross my fingers for you. If you don't...make an effort to protect yourself next time, or don't engage in intercourse.

2007-04-10 07:36:41 · answer #9 · answered by What, what, what?? 6 · 0 1

If your period is late by more than a week, you can take a test. Otherwise it's a waste of money.

2007-04-10 07:34:27 · answer #10 · answered by Anonymous · 2 0

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