Should I Stop Taking Cerazette If I Ve Had 6 Days Of Light Pink Bleeding Two Weeks After My Period, Despite Already Having A Mirena Coil?

Good morning I have the mirena coil but was constantly having periods and light bleeding in a month totalling 10 days in all. The Dr put me on cerazette. I have been on it for a month but have now had pink light bleeding for 6 days 2 weeks after my period. Should i stop taking cerazette