My ex and I had unprotected sex the day my period ended. He pulled at and even though I wasn't ovulating we were still worried so I took plan b 20-30 minutes after sex. Few days later I started to bleed again. I just thought maybe it was working. It's been a month later since that happened and I still haven't gotten my period. I'm having period symptoms such a cramps. But I also feeling like throwing up time and time. I need despite help. I don't want to be pregnant