Hlw doctor i m 19 now i had done a protected unsuccessful sex with my b.f on January 10 but for the 1st time we just did not successful do that...after that on January 12 i had my periods for 5 days with clots..then in February i had my periods with clots for 4 days..in march i don't had any period yet in April i had take a home pregnancy test it was negative after that i had got my periods for 6 days with small clots...what the problem plez help me doctor?