Really need help, such bad anxiety

In July, I ovulated on the 3rd and my boyfriend and I didn't have sex BUT I gave him a handjob and blowjob and I swallowed, and wiped my hands off on a towel after from the spit and Precum, then I'm afraid I touched myself in the bathroom and I'm scared I got pregnant from that. Then the 9th I was outside of my fertile window and had protected sex, with a condom and he didn't ejaculate for like five minutes, we checked the condom for holes after.

I got my period on time, on the 17th. It seemed lighter but still had the red blood and lasted six days. I was still scared I was pregnant so I took a test after the period and it was negative.

In August I didn't have sex but I was continued to be worried about last month so I took another test, and it was negative, then I went to the OB-GYN to get put on BC and had a urine test which was negative or they wouldn't have put me on bc, by then I would've been 7-8 weeks so it would've been detectable right?

Anyway, I got my period this month on the 9th, after having some awful pain during that cycle around ovulation.

I started my bc the Sunday after that period, five days ago, and now I feel like crap. I'm bloating, sometimes nauseous, my boobs feel bigger, I'm gassy, but I still think I ovulated because it hasn't been seven days. I'm STILL freaking out about being pregnant even though I've had two periods because of my symptoms possibly from the birth control. My boyfriend told me to calm down because my body just needs to adjust but I'm still worried. I just want to feel better and not be so paranoid. I'm also very guilty at constantly checking my cervix and cm, which has been heavier until today when I should have ovulated. 

I'm just so confused that my bc isn't working and my body is messed up. And for some reason pregnancy is still freaking me out.

Any advice? I'm going to college tomorrow and I want to relax but I feel awful and I'm just really worried.

Thanks