Am I pregnant? How high are the chances? Too early for symptoms?

I had unprotected sex a week ago or so, he did not cum but he precame inside me. He didn’t masturbate for a week so I thought there shouldn’t be any sperm in the urethra. I am in fertile window right now and idk if i ovulated or not but my boobs hurt for some reason and I have small pain in my ovaries. What is fertile window? Can someone explain? And how likely am I to be pregnant in this situation? Im 16 btw.