Last month I had a really ambiguous positive on my opk, so this month I started testing a few times a day. I got a very clear positive strip this morning. We weren't able to BD before work- is tonight going to be too late? Intellectually I don't think it is, but I can't stop counting the hours down in my head! This is our third month trying and we've been a bit more lax about BD during my fertile week than usual, so I'm so worried about missing our chance!