this is our first month ttc, I got a positive opk on Monday at 11ish am, and again Mon at 8ish pm. hubby left for a work trip Mon afternoon and is gone until Friday. 😐 we bd-ed on Thursday night and Sunday morning (3amish). I didn't test on Sunday but had a negative opk yesterday. are we out this month because we missed our window? or possible that Sunday morning activities could be successful?