Period help

Shenyia

So I’m on the nexplanon bc , been on it for a year and a week now . My period is irregular like my period could be here for about two months and get off for three days and come right back on . It’s not a heavy period it’s like and it’s different at times. Anyone have or had this problem and know how to fix it. ? I don’t really wanna get off it but if there isn’t anything I can do then idk