Am I pregnant or just late asf

R

I’ve taken 3 pregnancy tests all came back negative. According to the app I’m 14 days late. I took a plan b two months before then got my period but this second one still hasn’t come. I have sore ish boobs and I’m cramping a little. I’m definitely emotional. I had unprotected sex after ovulating but for a very very short amount of time and we didn’t finish. What is going on?