Last year, december 29 2011, me and my boyfriend did some things. He was naked and i was on my underwear. He said he didnt ejaculate. Then my period came last january 17 but it was light not my usual flow. It ended on january 22. After that I was experiencing brown spotting and that spotting turned into bleeding and now that bleeding is getting heavier. I'm getting worried. What could this be? Im 16 and not taking any pills. It's like im having another period again but a little heavier. Is this because of what me and my boyfriend did? Or is this just normal?