I'm 16 years old. I had unprotected sex (yes I do regret is so bad) on the 21st of October 2016, my period came two weeks later on the 30th of October and it finished on the 2nd of November. He did not ejaculate inside of me and I'm on birth control pills. I have no pregnancy symptoms but I'm still scared about being pregnant. It was my first time having sex. Do you think I have a high chance of getting pregnant? Please help I'm so scared. :(