I've been tracking for months with opk and I've just started this month to temp with bbt. I think I usually ovulate a bit later in my cycle (between CD 16-20) -my cycles are between 28-32 days. Almost 3 years trying and nothing is working. We've tried different tactics each month. Bd every other day, then Bd every day in fertile window etc. When I got pregnant with my first we had sex only once that month. I'm currently on CD12 and nowhere near a positive opk yet (I rarely get one where its postive to be honest) but I know I definitely ovulate. I'm wondering if I should wait to just do it the once again but I know it's only a small window and dont want to miss it! Help!