The first trimester of your pregnancy can be a very exciting time. But there's lots to consider and plan for, and you’ll need to know some key things first.

A miscarriage is the loss of a baby, usually during the first three months or first trimester of pregnancy.

A non-invasive prenatal test (NIPT) is a sensitive test to screen for Down syndrome and some other chromosomal disorders early in pregnancy.

Think about the prenatal screening tests you might have, and whether you want a dating scan to confirm your due date.

By week 12, your baby is the size of a plum but fully formed, with their organs, muscles, limbs and bones in place.

During week 11, you might have your first ultrasound and see your baby for the first time.

When you conceive, your body’s hormone levels change, but you may not notice any signs that you’re pregnant yet.

Your baby is now about 1cm long and if you haven’t seen your doctor yet, now is a good time to start your antenatal care.

For women who have a regular menstrual cycle, the earliest and most reliable sign of pregnancy is a missed period. Read about some of the other early pregnancy signs and symptoms.

By week 8, you might be experiencing morning sickness, need frequent trips to the toilet, and feel tired or moody.