I've been on birth control for almost 2.5 years already. Last week I took my birth control pill at the same time as always. I was starting a new pack at 6pm on Friday. By 6:35 pm I threw up and I'm not sure if I vomit my birth control pill. I vomit because of alcohol. I had unprotected sex with my boyfriend that same night and he did come inside of me. I've been taking my pill everyday at the same time. I just thought of this almost a week later. Can I get pregnant because of this?