I recently tested with the opk and the line was dark and my husband and I had unprotected sex the night before as we are trying to get pregnant. My question is what are my chances of getting pregnant even if we don't have sex tonight (as he won't be here) I'm feeling as if I'm ovulating but of course one can't always be right on with these things. It's the first day that I tested to see if my lh surge was there so I hope I caught it right on time this month.