Why am i getting spotting a few days before my period since i stopped breastfeeding my third child? could this affect future pregnancies?

Irregular periods following discontinuation of breastfeeding is very common. It reflects your body's efforts to recalibrate hormones back to normal levels. It can take up to 6 months to resume normal cycles. Unless you are trying to get pregnant, use a trusted method of birth control every time you have intercourse. If the irregularity persists past 6 months, see your Gynecologist.