Week 19 of pregnancy
Updated 25 Oct 2026
Your baby this week
About the size of a mango
Source: Vinmec – Bảng cân nặng và chiều dài thai nhi theo tiêu chuẩn của WHO
Your baby's development
Your baby is about 15.3 cm long and weighs about 240 grams.
Your baby's skin is now covered with a white creamy layer - vernix caseosa, like cheese, which keeps the skin smooth and helps your baby move easily through the birth canal during a vaginal birth. This substance is also known as vernix. Your baby's tooth buds are also forming. Oh, and if you start craving cheese at this point, it isn't Momby's fault, and if you want to eat some right now, that might be a good idea too.
Your body
You are nearly halfway through your pregnancy. In week 19, constipation, insomnia and cramps still bother you. Your uterus is growing fast and stretching the round ligaments, causing aching on both sides of your tummy.
Patches of skin pigmentation and stretch marks will appear more. You can massage with moisturiser or coconut oil to reduce dry, itchy skin.
Some mums experience pica at this stage. This is a condition in which you crave unusual things such as sand, charcoal, paper or soap. It is caused by a lack of important minerals such as iron and zinc.
Advice for you
You can do gentle exercise such as yoga, walking or water exercises to ease aches and pains, limit stretch marks and lift your mood.
When sleeping you can use a leg pillow to improve blood circulation.
See a doctor if you have a lot of cloudy vaginal discharge. Joining a labour and birth class at this stage will give you lots of useful information. You should also split your food into smaller portions to eat several times a day. Always having someone with you, or at least basic help available in time, is also a safety measure parents should think about.
Watch the video for this article
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.
- Bệnh viện Từ Dũ (accessed 22 Oct 2026)
- NHS (accessed 22 Oct 2026)
- Vinmec (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.