Scarleteen

Hi, I just ended my period on the 4th and i started trinessa lo on the 5th. I had unprotected sex (i believe he came in me) on the 6th. I ovulate next week and I never took a plan b. Im just wondering if the birth control will have kicked in by then or is it really just a 50/50 chance im pregnant at this point?

Hi Spacebabe,

It takes at least a week for the pill to reach fill effectiveness, although most sources (including us) recommend waiting a full pack before engaging in unprotected sex. So, given the timeline you describe, you did not have full protection from the pill