So I had sex a couple days ago not sure how long ago(I know that's horrible) but anyways he used a condom sometimes but took it off once and pulled out but afterwards I was getting worried because I was waiting for my period and I couldn't remember if I had it already this month I keep track on this app but I didn't think to look but I'm just looking at it and I see that I did have my period at the end of the month. I'm still worried about being pregnant. I'm scared because I'm only 17 and my mom would be so disappointed that I'm even sexually active. What should I do?