I'm 17 years old, I'm on birth control have been on it for about a year now, me an my boyfriend had sex an has never had sex with anyone but me and my periods were normal until last month now when I start it's like a dark blackish discharge an idk what to do some one told me I maybe pregnant bc the last time we did it the condom broke but I took 2 test an it said I wasn't an so now I don't what to do or think... Any one that can help me I will be very very thankful