Worried

I started my period yesterday, it was really light and barely anything. Today my flow was moderate, bright red blood, and I could feel it gushing out.
Tonight is when it started to slow down. I still see blood when I wipe and stuff but it's not much and there's cervical fluid mixed into it. 
I'm so worried about a lot...
pregnancy, endometriosis, cancer, pretty much everything.
My boyfriend and I had sex a week and a half before my period came and we did it for five minutes, he never ejaculated, and we checked the condom for holes afterwards. 
Also, I'm worried that after I gave him a handjob on a night during my fertile days, I maybe have gone to the bathroom after wiping my hands and touched myself. 
Do you guys think it's just an off month? Or something else I'm really freaking out. Thanks