I didnt want to have a period last month, so i doubled up on my packed and starting taking a new one when i should have stopped. Instead of not having a period, i came on a week later then planned if i didnt double up and ive been bleeding for 10 days. I finish my pill packet on monday and have my 7 day break. Is this normal and what do i do? Im meant to come on nexr friday and im worried i will?? Is this normal and why?