So on oct 5th my boyfriend and I had sex with out protection and he said he would pull out when he was going to cum do I said okay like a typical teenager, so when he told me he had to cum, he pulled it out , but he thinks he cum inside of me, like the Precum .. Not sure, so now it is Nov 2nd and I still haven't hot my period yet! Can I be pregnant?? And another thing while we were having sex he had his boxers on, he thinks I can't get pregnant because he had his boxers on, is that correct or can I still be pregnant ?