Pregnancy week 30

Your baby’s development

Week 30 puts the eyes in the spotlight: your baby is about the size of a cabbage, around 39.9 cm long and 1319 g. The brain is developing rapidly and its surface is forming more folds, which increases the area available for learning and sensing. Bone marrow now takes over making red blood cells. The eyelids open and close, and your baby may turn toward changes in light. Fat is building up under the skin, so the face begins to look fuller. Your baby still floats in amniotic fluid, which is gradually reaching its highest level. Swallowing and breathing-like movements continue as practice for life after birth. Your baby keeps hearing your voice, your heartbeat and sounds around you, so talking or singing can be a lovely way to feel close. Your baby spends much of the day asleep, and when awake the movements may be short but lively.

Changes in the mother

In these weeks sleep can become a challenge for many people. Your baby's movements, frequent trips to the bathroom and difficulty finding a comfortable position can wake you at night. This is very common, and short daytime naps may ease the tiredness. Leg cramps, especially at night, are frequent; some people find gentle stretching before bed helpful. A pulling feeling or mild ache in the groin can come from ligaments stretching. As your belly grows the skin tightens, so you may notice itching or dryness, and a moisturiser can soothe it. Some people have mildly swollen hands and feet, but sudden or marked swelling is something to check with your healthcare provider. Mood swings, forgetfulness and worries about birth are also a usual part of this stage, and sharing how you feel can lighten the load.

To do this week

• If you have not yet booked your third antenatal visit (weeks 28–32), plan it now.
• If your blood group is Rh negative, talk to your healthcare provider about the timing of anti-D between weeks 28 and 32; your provider makes the plan.
• Try keeping the bedroom cool, dim and quiet.
• Prepare your questions about the type of birth for your provider.

Tip for the partner

You could help with sleep by finding an extra pillow, or take over some household chores so there is more time to rest.

Nutrition tip

Pairing iron-rich foods with foods containing vitamin C supports absorption.