Stupid question?

I have been taking opk for the past three days which came negative but yesterday i got a smiley face in the afternoon but we have already BD in the morning, and after BD i had to do some house cleaning works. Will this affect? And Today too i got a smiley face is this normal? We bd 2 days before the first positive, yesterday morning before i got the positive and we are planing to BD tonight and tomorrow. Will this be enough? I really want to start 2015 with a BFP!