So me and my SO had unprotected sex 3 times Tuesday. I took an OPK test around 8 am but it was negative. The last time we had sex was maybe 5pm that day. Around 9 pm I had a ton of egg white discharge but I thought it might be semen (idk if that’s possible hours later). Anyway I took my OPK at 9 pm sometime and it was really close to the control lines color but not quite there yet. Well now since then (2 days later) all my OPKs are barely seeable. They haven’t gotten dark since the one from Tuesday night. Do you think I caught my surge at the end and it already passed?