when will it end

Jossephene
I have the nexplanon and my periods were normal but this one is taking forever to end. I started my period on April 16 and I am still currently on it. My doctor put me on the pill too thinking that maybe that'll stop it but so far a week in and it doesn't seem to want to stop still. She said to give it 8 weeks to regulate out maybe. Do y'all think it'll really help or am I wasting my time on this. Has this happened to anyone else here? How did you fix it?