Am I just paranoid?

My Boyfriend and I had protected sex on the 25th Feb and eve said I had already ovulated but that day I was very pms and had clear discharge so I think I may have accidentally had sex while ovulating. I was on top and when I got off their was cum on the base of this dick and he said it was mine but I thought it was his. Anywho I'm terrified that I'm pregnant and my boyfriend thinks I'm being ridiculous and it's really mad that I keep stressing and talking about it. I was due on the 5th (on eve) but thinking I might actually be due later as my ovulation period seemed off of the app. Yesterday I took two clear blue tests (they say you can test up to 5 days before the first day of your missed period) but I'm scared I tested too early and that the negative result is inaccurate. I don't know what to do and I feel so anxious but I can't talk to my boyfriend about it anymore. Can I have your opinions and advice, I'm so scared.