Hey, saw this feature so I decided to give it a shot. I started my period when I was 12 and was always pretty regular, I'm 16 now. The past 5 months I would say they have been completely off. I had one in late November and then it completely disappeared for a couple months. When I finally got it it was there, but lighter than usual. The next time I got it it was about 2 weeks late, still light. This month I got it a week early and it was back to being a bit heavy as it used to always be. Some people keep telling me I may need birth control to be regular, but I just don't know. Any advice?