hey, im 19 years old, married for about 6 months now. ive been takng birth control pills for about 4 months now. just recently ive been getting really bad cramps in my stomache, feel like throwing up. and i get really heavy periods while on the pill, sometimes they getlight and sometimes they get heavy. they only last for about 4 or 3 days. my regualr cycle isnt like that. before i started taking pills, i used to get my period 6 days a month. i wanted to know if thats normal. also i wanted to know. my husband and i had unprotected sex 5 months ago. is there still a chance i might get pregnant? how long does sperm live inside a women?