Sex does not stimulate prolactin, so it doesn’t increase the volume of milk produced. Milk supply depends on demand, meaning frequent breastfeeding or pumping is key. After having a baby, it's normal your sex life changes, especially if you're breastfeeding.

When a woman breastfeeds, her body releases two very important hormones: Prolactin and oxytocin. Prolactin stimulates milk production and helps with bonding. It also makes women feel relaxed and …