Breastfeeding and fertility

Breastfeeding can affect your fertility (ability to have a baby). When you breastfeed your body releases a hormone called oxytocin, which helps your uterus (a muscle in your belly where a baby grows) shrink back to its normal size. When your uterus is at its normal size, it's easier for your body to get pregnant again. Oxytocin also helps your breasts make milk, which is why breastfeeding is important for your baby's health. So if you want to get pregnant again, breastfeeding can help make it easier for you to do so.