Week 11 of pregnancy: Growing Rapidly

Your baby is growing quickly, now about 4–5 cm, with bone starting to form and the gut settling back into the abdomen. Nausea may still be around but often eases over the coming weeks. The main event is the opening of the first-trimester screening window: the NT scan and double marker blood test can be done from 11+0 to 13+6 weeks, and it is worth understanding what screening means before you go. A dental check-up is also worth fitting in.

Crown–rump length is typically about 4–5 cm this week; the 4.1 cm and 7 g shown are averages, not targets. For the NT measurement the baby needs to be roughly 45–84 mm long, which is why the scan is booked inside a set window.

Every pregnancy is different - you may have some, all or none of these.

Nausea, starting to ease

hCG peaks around 8–11 weeks and then falls, so some people notice improvement now, often with good and bad days alternating for a while. Symptoms that are getting worse rather than better, or stop you keeping fluids down, need a call to your doctor.

Constipation

Progesterone slows the bowel. Fluids, fibre from whole grains, vegetables and fruit, and regular movement help. Isabgol is considered a safe option if diet changes are not enough, but check with your doctor first.

Bloating

Wind and a swollen feeling are common. Smaller meals and a walk after eating may help. Severe pain with bloating is not normal and should be checked.

Anxiety about tests

Waiting for screening and results can be stressful. Writing down your questions and bringing someone with you to the appointment can help.

• NT scan (nuchal translucency)

  Commonly offered

  11+0 to 13+6 weeks

  An ultrasound that measures the thin layer of fluid under the skin at the back of the baby's neck, and also confirms dates, the number of babies and early anatomy. A thicker measurement is linked with a higher chance of some chromosomal conditions but is not a diagnosis.

• Double marker blood test

  Commonly offered

  Alongside the NT scan

  Measures two pregnancy hormones, free beta-hCG and PAPP-A. Combined with the NT measurement, it gives the chance of Down's, Edwards' or Patau's syndrome. The UK calls this the combined test (11+2 to 14+1 weeks); US first-trimester screening is at 10–13 weeks.

• CVS (chorionic villus sampling)

  Only if needed

  After 11 completed weeks, if needed

  A diagnostic test that takes a tiny sample from the placenta to examine the baby's chromosomes. It gives a definite answer but carries a small risk of miscarriage, so it is offered only after a higher-chance result or for other specific reasons. Amniocentesis, using a sample of fluid, comes later, from about 15–16 weeks.

• Dental check-up

  Varies by provider

  Any time; early is ideal

  Check-ups, cleaning and needed treatment such as fillings, root canals and extractions are safe in pregnancy and should not be put off. Local anaesthetic and shielded dental X-rays are safe at any stage.

Screening is optional. A lower-chance result is not a guarantee, and a higher-chance result does not mean the baby has a condition; it means you will be offered more testing. In India every pregnancy scan is recorded on a Form F, and sex is never disclosed.

• 🌿Vitamin B12 is found naturally only in animal foods, which makes it a nutrient to watch if you are vegetarian. Milk, dahi, paneer and chaas every day are the main vegetarian sources.
• 🌿Curd-based dishes such as raita, kadhi and chaas are easy ways to add dairy if plain milk turns your stomach.
• 🌿If you eat eggs, fish or chicken, these supply B12 too. Cook eggs until both white and yolk are firm, and cook meat and fish thoroughly.
• 🌿Vegan diets, or diets with very little dairy, may not supply enough. Ask your doctor whether you need a B12 test or supplement rather than buying one yourself.

• •Swimming and stationary cycling are good low-impact options if walking is uncomfortable or the weather is too hot.
• •If some energy is back, add two short sessions a week of light strengthening, such as wall push-ups, sit-to-stand from a chair and gentle resistance-band work. Light to moderate weights are fine if you are used to them.
• •Keep to a pace where you could still chat, carry water, and avoid exercising in the hottest part of the day so you do not overheat.

• •Before your screening appointment, think about what you would want to do if the result showed a higher chance. You do not have to decide in advance, but knowing your options can make results easier to handle.
• •Bring your partner or a family member to the scan if you would like support; ask the clinic beforehand whether that is allowed.
• •Do not postpone dental treatment you need; problems left untreated can get worse over the months ahead.
• •Take your MCP card or antenatal file to every scan and test so results are recorded in one place.

• ?Which screening test do you recommend for me, and what does it cost here?
• ?When will I get the results, and who will explain them?
• ?If the result shows a higher chance, what would the next steps be?
• ?Do I need a B12 test, given my diet?

• Decide whether you want first-trimester screening
• Book the NT scan and blood test before 13+6 weeks
• Arrange a dental check-up
• Have a dairy food at every meal if you are vegetarian
• Write down your questions for the scan