So I’m starting on Tri-Sprintec birth control pills. I know you have to wait and use a back up method of birth control the first full week. My fiancé and I want to be safe and wait like a month for it to fully be in my system until we have unprotected sex. I guess my question is, after being on it a month, can my fiancé cum in me? He’s a little nervous about it and I guess I am too.