Usually, there is a direct relationship between the time of recovery of menstruation after childbirth and breastfeeding. If you have not been breastfed after childbirth and you have not had your period for 3 months, it is not normal. The first consideration is whether the period has not resumed due to pregnancy. If you are not pregnant and your period has not resumed, you can go to the gynecology department for an ultrasound and a blood HCG to rule out pregnancy and then take progesterone to make your period come. If you are breastfeeding, it is normal to have no period for 3 months after delivery. Usually, for future mothers, it usually takes 6-8 months for menstruation to recover, and in some cases, even while breastfeeding, menstruation will never recover.