Pregnancy week 11

Your baby’s development

This week the baby is about as big as a fig, around 4.1 cm long and weighing 7 grams. About half of the length is still the head, as the brain is growing fast. The body now lengthens faster relative to the head, and the baby gradually approaches newborn proportions. The fingers are fully separate and the nails are just forming. The baby is active: it can kick, wave its arms and even open its mouth and swallow. These movements show clearly on ultrasound, but you cannot feel them yet. The ears settle into place and the eyelids close, staying mostly closed until birth. The bowel completes its move into the abdomen. The outer genitals begin to take shape, though telling the sex on ultrasound is still difficult. The NT scan coming up in the next weeks gives information by measuring the fluid space at the back of the baby's neck. While growth moves quickly, your baby is edging closer to sensing your heartbeat, voice and movements. These small movements are a lovely sign that the nervous system is working steadily.

Changes in the mother

In week 11 some people notice their energy beginning to come back. Nausea may ease and appetite grow. For others heartburn, constipation and dizziness continue. The belly may start to show a little, especially if you have been pregnant before. Comfortable, stretchy clothes make life easier. Skin patches, lines and sensitivity are usual. Your mood may settle, but if you still have ups and downs, that is common too. In this or the coming weeks the first-trimester screening (NT scan) may take place; it is not compulsory, it is an option offered to you, and the result gives information about probability rather than a diagnosis. Your doctor will explain the choices. It is natural to feel worried while waiting for results; ask as many questions as you like. If you have severe pain, bleeding that soaks a pad, or fever, get help right away.

To do this week

• Book the NT scan and first-trimester ultrasound (weeks 11 to 14).
• Write down your questions about the screening.
• Check with your doctor before light exercise (walking, pregnancy yoga).
• Review clothes and underwear for comfort.

Tip for the partner

Joining the screening appointment and talking through results together is one of the best ways to share worry.

Nutrition tip

Up to two portions a week of low-mercury fish (salmon, sardines) gives omega-3; avoid shark and swordfish.