Hi I'm 17 and I have sex with my boyfriend and we did use a condom. It was 2 weeks after I had my period in February. Then in march I took 3 pregnancy test at home I 2 were positive 1 negative so I decided to make a doctors appointment march 18 I got my period march 17th and it wasn't normal it was light so I went to my appointment and then I started bleeding more then the first day on the 18th the doctor said I wasn't pregnant so then on the 19th it stopped and it started again the 20th I really didn't care because my mom said my period could be getting normal finally. Then on the 28th of march I went in for a blood test it came out negative (my period is usually dark heavy and a week long) well now its April 14th and my period isn't normal like nothing comes out when I whip or on my underwear but when I have a tampon in a little bit of blood comes out