Nervous about pregnancy

I had protected sex about a month ago, with condom and pulling out. We also did some things in the shower after without penitration.. I'm on birth control, and when I got my period it was lighter than normal and brown, had one heavy day though.

It's been about two weeks and I've had 3 negative tests but my boobs have been super sore, and I've been cramping and feeling nauseated and I'm very scared I could have gotten pregnant despite the odds. I'm 8 days away ish from my next period but these symptoms have been going on for the last 5 days... What is wrong with me