can someone help please !!!

Gemma-Marie
Basically I have the implant and I've had it nearly 2 years and my periods have not yet regulated 
I normally with the implant don't get one for two or three months and then ita really heavy and painful 
But recently I haven't had one I will spot so put a pad on and not really bleed it's spotting for a few days and that has happened once or twice recently 
Help fellow females any advice or wise word