Nexoplanon

Hi everyone! I had a question regarding nexoplanon. I’ve had it for about two years now first month I got it I had my period for a month then for a few weeks the month after and then I rarely got it and when I did it would be about a week. I’m currently on my longest period since I first got it, it’s been 3 weeks. I really can’t take it anymore. Since it’s really messing with my emotions too. When should I become concern? It’s not a lot I’m bleeding but if this is how it’s going to be from now on I don’t want to continue with it. Pretty much just looking for advice to get rid of it now or just ride through it??