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Forum Name: Obstetrics

Question: How many days after conception can I take a pregnancy test?


 yankees_girl419 - Wed Apr 29, 2009 10:43 am

I've searched all over the internet, but I cannot find a dependable answer. I took a pregnancy test 16 days after conception would have taken place if I were pregnant. The test came back negative, how accurate is that result? I know you're supposed to wait until you miss your period, but for some reason I can't remember when I should be expecting my period.
 Debbie Miller, RN - Sat May 02, 2009 6:14 pm

User avatar Hello,
I would expect the test to be pretty accurate at this point, assuming you knew for sure when you ovulated. There is a fertile window and unless you are monitoring yourself closely, most people do not know exactly when this occurred.

If you are sure of the ovulation date, your period would be expected about two weeks after this. Reliability of the home tests are quite good a week after the expected period date and still pretty good when you are just a couple of days late, though a negative test at that time might still be a positive pregnancy. Repeating it a week later is usually a good idea unless you have your period in the meantime.

Best wishes

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