I had unprotected sex back in December I had accidentally skipped some of my birth control pills (I have been taking them for about 2 and a half years) so I took a plan b pill. I got my period in December and it was how it normally is. We didn't have sex after that. I continued my birth control pill routine and In January my period came and was normal for about 5 days. Then After those five days I had about another week of very very light Spotting. Now it's February and my period is still really really light. We had sex once but it was literally for about 20 seconds. Is the plan b screwing up my period or is there a bigger problem? HELP!