Weak positivity returns immediately after ovulation. Ovulation test strips measure the amount of luteinizing hormone in the urine, which is weakly positive immediately after the egg is released. Ovulation test paper will appear strong positive before ovulation, strong positive, that is, the blood luteinizing hormone will appear peak value, after the peak value will trigger ovulation, usually in about 12 hours will appear ovulation, ovulation will appear weak positive, is a normal process. And ovulation is the best time to conceive, but it is not the more frequent the better, too much too fatigue rather unfavorable to conceive, it is recommended that the best is in the first day of strong positive coitus once, the next day again coitus. The first thing you need to do is to prepare for the next day, and then you can go back to your home and get a new one.