I had a positive opk on Sunday and half of Monday. BD on Friday night before the positive and on Sunday with the positive. It's now Wednesday and my opk is completely negative now. We werent able to BD Monday or Tuesday. Is today too late to BD? I had no other ovulation symptoms except cramping that I assumed was O. I'm not temping so I can't really tell if I ovulated already but it's been a few days since my positive so I assume I did.