So I have a problem November and December my period came the 3 and that same month (December) it came again on the 30 I didn't pay mind to it because It came normal the 5 days , thought it was normal. But then on January I got it again a week later but Its coming out brown a lot . I had sex on the week I had nothing and unprotected my boyfriend didn't come in me but I still took the plan b for protection it was my first time taking it bc I've always used condoms so now I'm worried bc my period is coming brown and a lot what do I do