I am 16 years old and got prescribed the pill for how painful my periods where. I told the doctor I was not sexually active as I didn't want my mum to know I was. She asked when my next period was and in theory it should have came yesterday ( Friday the 25th ) She advised I started the pill straight away as it's not for contraceptive reasons I don't have to wait to see if my period comes  ( of course as I didn't want my mum to find out I was sexually active I started them when advised ) I have been taking the pill since Saturday the 19th of august and my period should have came on the 25th , has the pill stopped my natural period or could I be pregnant