I really need to figure out what is going on becuase it is driving me crazy. I am on birth control patch and I had sex the day I was taking it off and we didn't use a condom for the beginning part. A day or so later I was feeling nauseas, breast tenderness, achy, headache, frequent urination, and very tired. I have never had these feelings before a period before so it started to worry me. I did get my period (i think) a few days late. However, it wasn't my normal period, it was really different. It was very very light and then it got really heavy for like two or three hours and then really light again. I am at the third day of bleeding but thinking that I was pregnant and now might not be but still kind of hoping I might be. I am 19 and probably not even ready to have a baby but with all the feelings and thinking that I really might be has gotten me hoping that I am or that I wont have complications later on if I choose to try again. I did take a pregnancy test today and it came up negative and I am going to a doctor tomorrow but I really want to know what you all think to help with my confusion.