Help!!!!!

Hi guys!! I got my nexplanon implant nearly 2 years ago now and I bled for 6 weeks straight since then I haven’t had a period at all I have just suffered with heavy discharge. Today I notice my discharge was very pink and it had a very foul smell too it (like old blood) and I had a sharp stomach crap earlier. I am considering getting my implant taken out as I have had nothing but issues with it but I was just wondering if anyone has had the same experience with the pink discharge and foul smell I did read that it could be my cervix decaying. I really don’t have to time to go to the doctor due to other commitments so some friendly advice would be brilliant!! Thanks :)