Okay .. I have been taking birth control for 3 years now, and last month I missed too many pills so I started my period early and had to throw away that pack of pills. That was the first time I have missed enough pills to start my period. So I had my period and it ended on a wednesday but I couldn't start my new pack of pills until sunday. Well on friday I had sex with my boyfriend without a condom and he went inside me, because I totally forgot. Well I started my new pack of pills and i'm on my 3rd week this month and all the sudden about 4 days ago I started having spots of blood in my underwear. I have never had spotted bleeding before this either. Not alot of blood but today on the 4th day since the spotted blood started it was so heavy that I had to put in a tampon. So I left the tampon in all day and when I took it out I hadn't bleed all day. So i'm just wondering if this is normal because I messed up last month or should I been concerned?