Community post

From what I understand, you ovulate within 24-36 hours of receiving your first positive opk.

I generally label the day after the first positive opk as ovulation day. But if the timing is iffy and it's a toss up between 2 days, I pick the later date.

Ok so at 7:45pm the night before i ovulated the OPK was a very very faint line. I felt that i ovulated at 2pm the following day so i tested again and had pretty close but not matching lines and that night i had the same two lines the following morning i had lighter and lighter lines that night and now have no two lines. My confusion is that the positive opk should come 24-36 hours before i ovulated...and seems to have come right at the time that i did? is this common?