I just gave birth 2- 1/2 months ago and just went on yaz 4 weeks ago. a week after i started taking the pill i finally got my period.Now I have been bleeding for 3 weeks with like slimy clots coming out every time i use the restroom it even makes a splash on the toilet.they are also on my underwear.My bleeding is very heavy it even treaspasses the pad and stains my whole underwear like if i wore a pad for nothing..is this because of the birth control? should i contact a doctor?