Weird bleeding after Removal?

So I got my Mirena replaced after 5 years on the 4th of January. I replaced it with the nexplanon, i loved my Mirena but I just felt it was better for my anxiety that I could touch this one at any given time...(strings were wrapped around cervix) but anyways, the week after I had my nexplanon inserted I had a short period (3 days) and now I’ve been what I call “shedding” its spotty brown blood (I know it’s old.. not worried about that part 😊- I make many calls to the Gyno haha! ) ever since. I say spotty as it just comes and goes as it pleases (thankfully there is no cramps!) and it’s not an actual flow...

Has anyone else experienced this? Or am I just an odd ball?