tww, period due April 20

Kirstie
hey,  I'm in my tww! I did NI for the first with a sperm donor! we did AInlast month but nos goes. we decided to do NI this month. we only had time do it one day. 
​4/4 around 3am we bd. 
​4/5 ovulated
​I had ewcm on 4/4, 4/5, nothing on 4/6 and ewcm on 4/7
​I've been using opks since December and they have been accurate the only thing different with this cycle is I have has a faint pos line since 4/3 up to today 4/7, it never got darker..  good sign?? we'll see