Period has now lasted more than two weeks

Hey guys, I'm a little worried, my period started, very lightly just over two weeks ago now and has still not fully stopped, at first I started lightly bleeding, then became more heavy after about a week, and now I'm back light to moderate flow.

I use to have implant in my arm but had this removed about a year ago now so surely it shouldn't be still this?

I've been TTC for about 12months now and have been referred to the hospital, have an appointment in May.

Was just wondering if anyone has had any similar problems, my periods have been normal apart from this month so I'm a bit confused as to what is going on, I'm thinking my cycle is just a mess!