I started the opks because my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> and <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period app</a> said I was fertile late last week into this week. The top one is the first one and it's very dark. I know the top is positive and the last one is very faint. My husband and I have been having sex quite a bit since my fertile window and last night when the apps said I was ovulating. Are my chances of becoming pregnant good? Should we still have sex tonight and this week to be safe? I had a miscarriage in February and we've been ttc #2 for almost two years. I guess I'm just anxious for the tww and nervous that it won't happen.