I am supposed to start my period in a week or two, however, i just went to the bathroom and a huge sack/chunk of skin thing just came out of me and i have no idea what it was!!!! i just had a biopsy last week for cervical cancer, in which case if i was pregnant would probably cause a miscarriage. but i had my period last month and everything was fine, however, my husband and i had sex during my period and i'm not on birth control. is this discharge a miscarriage or is this from cancer???