11 Weeks Pregnant: What to Expect, Baby Development & First Trimester
11 weeks pregnant: what to know right now
Baby: Size of a lime (~1.6 inches, ~0.25 oz) · Fingers and toes separated, nail beds forming, head nearly half body length · Body: Nausea beginning to ease for many, fatigue still intense, possible round ligament pain · Key milestone: 12-week scan in approximately 1 week · Coming up: End of first trimester at week 13
Here's everything happening with your baby and your body this week.
If your morning sickness is still severe, ask your doctor about safe anti-nausea medications — you don
🌱 Baby's development this week
- Fingers and toes fully separated
- External genitalia forming — sex determinable soon
- Baby hiccups for the first time (you won
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Fingerprints form between weeks 10–16 through a complex interaction of pressure, growth, and mechanical forces — each pattern unique even in identical twins.
🤰 Your symptoms this week
💛 Changes in your body
- Nausea often starts improving after week 10–12
- Uterus rising above pelvis — belly becoming visible
- Increased vaginal discharge is normal
- Hair and nails may grow faster from hormones
The end of the first trimester often brings a mix of relief and new anxiety. Body image concerns often begin as clothing starts fitting differently.
The 11-Week Pregnancy Scan: What to Expect
Many providers offer or recommend a scan at 11–13 weeks — the nuchal translucency (NT) scan that screens for chromosomal conditions and gives an accurate due date. At 11 weeks, you're in the ideal window to book this if you haven't yet.
What the NT scan involves: An abdominal or transvaginal ultrasound measuring the fluid at the back of the baby's neck (nuchal translucency). A thicker measurement increases the statistical risk of chromosomal differences. It's combined with a blood test (PAPP-A and hCG) to calculate a risk ratio.
- Results are given as a risk ratio (e.g., 1 in 1,500) — not a diagnosis
- A high-risk result leads to NIPT or amniocentesis for diagnostic certainty
- The scan also confirms a heartbeat, checks for twins, and updates your due date
- You'll see your baby moving for the first time — a meaningful experience for most parents
After this scan, most couples share their pregnancy news. See week 12 for the full 12-week scan guide.
For a complete guide to all prenatal screening and diagnostic tests — including NIPT, the NT scan, anomaly scan, and glucose test — see Prenatal Tests Explained →.
🥗 Nutrition focus
- Iodine 220mcg/day: essential for baby
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Some women opt for a private gender scan from 16 weeks, though NHS/standard anatomy scans reveal gender at 18–22 weeks.
✅ This week's checklist
Frequently Asked Questions: 11 Weeks Pregnant
How big is baby at 11 weeks?+
At 11 weeks, your baby is approximately 1.6 inches (4.1 cm) long and weighs about 0.25 oz (7 g) — roughly the size of a lime. The head is still proportionally large, making up nearly half the body length. Fingers and toes are fully separated.
What are common symptoms at 11 weeks pregnant?+
Common symptoms at 11 weeks: nausea beginning to ease for many (though it can persist), intense fatigue, breast tenderness, frequent urination, round ligament pain as the uterus grows, and mood changes. Some women experience a metallic taste or food aversions.
When does morning sickness go away?+
Most women see significant improvement in nausea between weeks 12–14. hCG levels — the main driver of morning sickness — peak around week 10 and then plateau. If nausea persists past week 16, mention it to your provider. Hyperemesis gravidarum (severe nausea requiring treatment) requires medical management at any gestation.
When is the 12-week scan?+
The 12-week combined screening scan (nuchal translucency + blood test) is scheduled between weeks 11–13. At 11 weeks, you are in the optimal window to book it. It screens for chromosomal conditions (Down's syndrome, Edwards', Patau's) and gives an accurate due date.
What trimester is 11 weeks?+
11 weeks is in the first trimester (weeks 1–13). The second trimester begins at week 14. You have approximately 29 weeks until your due date.
Track your pregnancy week by week
Interactive guide · 40 weeks · Fruit size visualizations · Personalized tips
Explore Week 11 in the Interactive Guide →