Condom problem

Hey guys i have a question, i'm in a relationship with my 3th bedpartner and i'm in my last year of uni. I don't know why but i'm so scared to get pregnant even tho i use the pill. We don't use a condom because it hurts me and i bleed for 2 days after the sex ... but i want to be super save just to make sure ..

My question is... is their a condom you guys think can help me and give me a good feeling or should i go to my doctor and ask for help?