I need some advice...

We've been TTC for two years. I finally reached the "I frickin give up" point a couple months ago. Last month, we had unexpected/unplanned intercourse. I opened Glow to log it, and saw that it was the day before my peak day. I never got my hopes up, but I felt pretty lucky. AF is now 7-8 days late, and every HPT I've taken has been negative. No sign of AF showing, and the only pregnancy symptom I seem to have is complete exhaustion. (A side piece of info: When I found out I was pregnant with #1, AF was 11-12 days late.)

My question: What do I do!?!?! I'm tired of not knowing.