Placental abruption is when some or all of the placenta peels away from the uterus wall before birth. It can deprive the baby of oxygen and nutrients.

Find out about placental insufficiency - when the placenta does not work properly, and your baby doesn't get the oxygen and nutrients they need.

The placenta develops inside the uterus (womb) during pregnancy. It gives your baby nutrients and oxygen. Find out more about the placenta here.

Bleeding during pregnancy is relatively common, however you should always contact your midwife or doctor immediately if it happens to you.

Fetal distress is a sign your baby isn't getting enough oxygen through the placenta. It might mean they need closer monitoring or an intervention to speed up the birth.

Usually, your waters break when your baby is ready to be born. Sometimes the waters break early. This is known as preterm prelabour rupture of membranes (PPROM).

High blood pressure in pregnancy is a common medical problem that usually disappears after the birth. It may signal a serious condition called pre-eclampsia.

An intrauterine infection is an infection inside your uterus (womb). Learn about causes, how to recognise symptoms, and when to see a doctor.

Postpartum haemorrhage is when you bleed more than normal after giving birth. It can be very serious and requires medical attention right away.

Preterm labour is when you go in to labour before your pregnancy reaches 37 weeks. Here's what to expect when you have your baby prematurely.