I didn't get my period for 5months due to pcos, it finally decided to arrive but it does not want to stop, i got my period for 21days minus the days i was spotting. i'm 31 years old,1 and a half year old baby, and always had irregular periods.

Irregular ovulation,: likely from polycystic ovarian syndrome, and insulin resistance. Causing hormone imbalance, slightly elevated glucose levels, leading to yeast recurrence and thickened uterine lining/cramping. See your doctor for treatment.

Need specialist: Poly-cystic ovary disease needs to be followed by a specialist. After having a baby there can other issues. You may need to be on medications but especially you need a specialist to confer with.