so I've been on tri-sprintec for a little over a month now and I've read that it becomes effective after 7 days and my pharmacist told me it becomes effective after a month. well both time periods have passed but last Saturday my bf suggested we have unprotected sex which we did and it only lasted about 10 seconds because I was scared. he pulled out and did not ejaculate in me whatsoever but I'm still a bit worried. please tell me your thoughts