Regarding the heavy period, I had one like that. I was going through a super plus tampon every 2 hours. Normally I'm not that heavy. My most recent period was back to normal for me. I think it may just have been an off period.
You might want to call your doctor regarding the new bleeding.View Thread
While being irregular in your teens is common and normal, bleeding for two weeks is not. You do need to see a doctor. Maybe your doctor can explain that birth control can help control your bleeding and cramping.View Thread
Yes, it's possible you ejaculated a little before you pulled out. You do know that the pull-out method is not a true method of birth control due to the high failure rate? My husband's youngest from his frist marriage was conceived using the pull-out method.
If it's been less than 3 days, your GF can take Plan B to help prevent pregnancy.View Thread