abnormal bleeding

Dena

i’ve been on the pill for about 4 months now, i get my period at the same time every month since being on the pill but i also spot in between periods, around the same time too. i know spotting can be a side effect of the pill and i went to my gyno about it and she said the same thing, but when i spot i also have cramps and it’s a pretty heavy flow. any help??