A Few Months Ago I Started Cerezette, I Have Since

A few months ago i started cerezette, i have since then upped to two doses as it wasnt working, i then was worried i was going to bleed whilst on holiday so i took utovlan for four days, its now a week since coming off them and im on a very heavy period, will this be a normsl seven day bleed as i am still taking cerezette?