Me and my boy friend had unprotected sex and since then we use protection, he did not cum inside of me. It is 5 days till my period and i am on birth control. I missed a day in the cycle but took it in the following morning. The next time we had sex a little bit of blood came out. Am i pregnant because my boobs have grown, i have lower back pain and i feel bloated. Me and him are both clean we got checked a month prior. I took a hpt and it came back negative i know i should have waited but i was worried. Am i pregnant?