Morning after

Heyyy ladies, so me and my BF has unprotected sex on March 24th. We went and got a plan B because I’m positive i needed it. March 24th was my first day of being fertile for the month. So fast forward to April 3rd i got my period(a week earlier than it was supposed to come ) it lasted until April 11 which was pretty long for me considering my normal period only last 5 day. My questions is when would i start pack ovulating or become fertile again