what part does the uterus play in pregnancy
The uterus has a lining that thickens up in response to hormones produced by the ovaries. If pregnancy doesnât occur, then one of the hormones that prepares the lining for a growing baby will also help the lining come off, which results in a period. Think of the uterus as a baby incubator. It expands to accommodate the baby and also works with the placenta to supply the baby with nutrients.