Hi i am on clomid (clomiphene) and i got a positive opk on the 10th of april my period was due on april 25 and i have not got it i took hpt got a - what cud it be?

Retake: Home pregnancy tests are very accurate. They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period. If you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. Just because you ovulate does not mean you get pregnant every time.