Hi all, I'm not sure if this type of question is allowed here, but I'm not sure where to ask! I'm 20 years old and recently went abroad for a semester of university and had a nice romantic fling with a local for a couple of months. Now, I am back in the States and 6 pounds heavier and I've been having random nausea (but no vomiting), backaches, my breasts and nipples are sore, BUT I did get my period. From what I remember, I had my period November 5-9, December 6-10, and January 1-5. The last time I had sex was my last night in Europe, December 19, in which the condom did slip off inside me when my man was pulling out, but the same thing had happened November 13 and I guess I thought it couldn't cause a serious issue. Is it possible I could be pregnant?