My boyfriend and I had sex two days ago and also yesterday and I'm really worried about getting pregnant. I tend to over think things a lot but the day after we had sex the first time I woke up the next day with period pain. Today I woke up feeling a bit sick. I'm just trying to tell myself it's something that I ate but I'm really worried that I'm pregnant. I'm only 15 and my parents wouldn't let me see him again if they found out we had sex. What do I do and what are the chances of me being pregnant. Oh and by the way it feels like I need to go to the toilet and do number 2's all the time