We are trying to conceive from past 3-4 months. But not able to. The periods are normal. The timing of having intercourse is also probably correct. What might be the reason? This time we had used the OPK to check. We checked the OPK on 15th day of first day of period and we saw two pink lines. And we had relationship that day. We also had intercourse after two days and third day. Also we had intercourse four days before we did the test. The day on which we saw two pink lines on ovulation kit the insertion and ejaculation was proper. Second and third day after the ovulation test positive the insertion I think was not proper and may be I dropped the semen at the opening itself. Pls help and thanks a lot in advance.