I got my last period on September 8th and it lasted until the 13th. I had sex with a friend twice since then on the 14th and 28th of September. Both times we used a condom and he pulled out before ejaculating. My cycle is always longer than the average, I skipped the month of May, then my two cycles after that were 37 and 39 days long. I've had sore breasts for the past 2 weeks and that's all I've noticed. I'm just freaking out but I am too afraid to take a pregnancy test. Also I'm 20 and my periods have never been regular since I got it when I was 13.