I'm 21 years old I got on my period at 10-13 fourteen and Up I never came back on my period became irregular I used to have them time from time now at 21 I missed 8 months without a period and started taking Aubra birth control I missed 5 days of it and been having unprotected intercourse with my fiance now I'm heavy bleeding wit bad cramps and every part of my body is cramping Can you tell me Why?