Period after birth control

Tahlayah

I had my baby September 3rd & I got my period Oct. 12th. Which was surprising to me bc I’m breastfeeding & I didn’t get a period that soon after my first child. My 6 week checkup was Oct. 19th & I got the nexplanon implant that day. (I had the nexplanon after my first child & had no period the entire time I had it in) I know every pregnancy & postpartum is different with each child, but I got my period again on Nov. 7th & I’m still bleeding 😐 at first it was very light now it is medium has anyone else experienced this? or should I go back to the doctor?