Week 11 of pregnancy
Updated 25 Oct 2026
Your baby this week
About the size of a strawberry
Source: Vinmec – Bảng cân nặng và chiều dài thai nhi theo tiêu chuẩn của WHO
Your baby's development
Your baby is as big as a large strawberry, 4 cm long and weighing about 7 grams. The placenta is gradually maturing, replacing the yolk sac. Your baby's head makes up 1/3 of the body. Your baby's tiny ears are now attached to both sides of the head. Your baby's eyelids are still closed.
The fingers and toes have separated and are no longer webbed. Meanwhile, fingernails and toenails start to develop this week; over the next few weeks, the nails will begin to grow.
Although you can't be sure of your baby's sex yet, the ovaries are developing if it is a girl. Hair follicles are forming not only on the head, but on the rest of the body too.
Your body
This week you may feel that your uterus is starting to get a little bigger. However, if you can't feel this yet, don't worry too much, as everyone's body and uterine position are different.
You may notice changes in your breasts such as fullness, soreness and darker areolas. The veins under your skin also seem to be standing out more.
You will find yourself a bit hungry these days – luckily that is a sign that morning sickness is easing. Try to gain weight effectively by choosing nutritious foods during pregnancy.
Bloating and burping: this is because progesterone relaxes the smooth muscle tissue in your body - including the digestive tract - slowing digestion to allow more time for nutrients from food to be absorbed into the blood and passed on to your baby.
But what is good for your baby isn't always good for you. That uncomfortable fullness in your tummy, especially after eating, will get worse for some mums-to-be. As your uterus grows, it squeezes your stomach and intestines, putting more pressure on your digestive tract and making you feel more bloated. In reality, your baby won't know anything about all your tummy troubles - and may even enjoy the whistling symphony from your stomach. Reduce bloating by staying away from fried foods, fizzy drinks and sweets.
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Signs that need a doctor now
If you notice any of the signs below, please go to the nearest health facility to be checked by a doctor.
Vaginal bleeding in pregnancy
This sign needs to be checked by a doctor. Please go to the nearest health facility now. If the bleeding is heavy or comes with severe pain or faintness, call the emergency number 115.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Convulsions (fits)
A convulsion in pregnancy is an emergency. Family members should call 115 at once, lay the mother on her side in a safe place and get her to the nearest hospital.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Fever in pregnancy
A temperature above 38°C counts as a fever. Please go to a health facility so a doctor can find the cause and advise on safe ways to bring it down; do not take medicine on your own.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Leaking fluid or waters breaking
Fluid leaking from the vagina may mean the waters are leaking or have broken and needs to be checked by a doctor. Please go to a health facility soon, lying with your head low while travelling.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Severe headache, blurred vision, sudden swelling
Headache with blurred vision, or sudden swelling of the face, hands or eyelids, can be a sign of high blood pressure in pregnancy or pre-eclampsia. This sign needs to be checked by a doctor. Please go to the nearest health facility now.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Reduced or no fetal movement
A clear drop in the baby's movements, or no movement, needs to be checked by a doctor. Please go to the nearest health facility now rather than waiting until tomorrow.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Severe or worsening abdominal pain
Abdominal pain that keeps getting worse, does not ease, or is severe needs to be checked by a doctor. Please go to the nearest health facility now. If the pain is severe with sweating, faintness or bleeding, call 115.
Source: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
Sources
Content advised by our doctors.
- NHS (accessed 22 Oct 2026)
- Vinmec (accessed 22 Oct 2026)
- Bệnh viện Từ Dũ (accessed 22 Oct 2026)
- Source for fetal size: Vinmec – Bảng cân nặng và chiều dài thai nhi theo tiêu chuẩn của WHO
- Source for the signs that need a doctor: Bệnh viện Đa khoa Tâm Anh – Các dấu hiệu nguy hiểm trong thai kỳ
This article helps you understand and prepare. It does not replace a check-up. For an answer about your own situation, please ask the doctor who is caring for you.