so i started birth control last month for the first time since i was 16. and the first month i was spotting unusually after my period was over. i kept talking the pills before i went to bed every night. and i missed on about 5 days ago and 2 the next day and continued taking one everyday. me and my ex boyfriend had unprotected sex last night and he finished inside me. for the first time ever. so we're both kind of worried.. should i take plan b?