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Second trimester

14 weeks pregnant

At 14 weeks 0 days, the second trimester begins. The head is becoming rounder and more in proportion with the body, fingerprints are starting to form, and many people find their energy and appetite returning, though symptoms vary.

This page covers 14 weeks 0 days to 14 weeks 6 days (14+0 to 14+6), counted from the first day of the last period. Check how far along you are

Enter it to see the calendar dates of your week 14.

Botanical illustration of a nectarine

About the size of a nectarine

Typical estimated weight 93 g (3 oz) at 14+0, about 115 g (4 oz) by 14+6. This is the 50th centile; healthy babies commonly vary by about 12.7% either way.1

A reference value, not a measurement of your baby.

How your baby is developing

  • The head is getting rounder and more in proportion with the rest of the body.2,3
  • The skin is starting to thicken and fine hair is beginning to grow. Fingerprints are starting to form.3
  • The fetus can bring its fingers to its mouth and turn its head. It is kicking around too, but you probably will not feel it yet.2,3
  • Small amounts of amniotic fluid are swallowed, and the kidneys pass the fluid back out as urine.2
  • The external genitals are fully developed. Many people who want to know the sex find out at the anatomy scan, around 20 weeks.3

Changes you may notice

Everyone’s experience is different. You may notice some of these, or none.

  • Many people start to feel less tired and sick around now, and their appetite may return. You still do not need extra calories at this stage, so healthy snacks between meals are a good option if you get hungry.2
  • Some people notice yellowish marks in their bra. This is usually colostrum, the first milk your body makes. Ask your doctor or midwife to look if you are worried about any breast changes.2
  • Round ligament pain on the sides of your belly, bleeding gums, nosebleeds, constipation and heartburn can happen now. Some earlier symptoms, such as nausea or mood swings, may carry on for a while.2
  • It is fine to sleep on your front for now. From 28 weeks, the NHS advises going to sleep on your side, because this helps reduce the risk of stillbirth.2

Care around this week

  • In the US, the second trimester runs from 14 weeks 0 days to 27 weeks 6 days. Genetic screening should be offered to everyone, and cell-free DNA screening can be done from 10 weeks, so ask about options if you have not yet discussed screening.4,5
  • Looking ahead, the standard anatomy ultrasound is usually done at 18 to 22 weeks.6
  • UK note: if you were not screened earlier, the quadruple blood test for Down's syndrome is offered between 14 and 20 weeks. Your next routine midwife appointment is usually at 16 weeks, and the whooping cough vaccine can be given from 16 weeks.7,8,9

Questions to ask your provider

  • Are any screening tests still available to me if I missed first-trimester screening?
  • When will my anatomy scan be scheduled?
  • Which vaccines do you recommend during pregnancy, and when?
  • How much activity and exercise is right for me in the second trimester?
When to contact your provider straight away

Call 911 (US) or 999 (UK) in an emergency, such as heavy bleeding or bleeding with severe pain, a seizure, chest pain, or severe trouble breathing.10,11,12,13

These symptoms are not always serious, but each one needs prompt advice from your provider, midwife or maternity unit (or NHS 111 in the UK if you cannot reach them) rather than waiting for your next appointment, and it helps to tell them you are pregnant.

  • Vaginal bleeding or spotting at any stage of pregnancy. Call 911 or 999 if the bleeding is heavy or comes with severe belly pain, shoulder pain, or feeling faint or dizzy.12,14
  • Fluid leaking or gushing from your vagina, or discharge that is unusual for you. Get checked straight away if the fluid is greenish, colored or smells bad.12,13,15,16
  • Your baby moving less than usual, not moving, or a change in their usual pattern of movements. Call immediately, even in the middle of the night, and do not use a home Doppler to check yourself.12,17
  • A severe headache that does not go away with simple painkillers or gets worse, or sudden changes in your vision such as blurring or seeing flashing lights.10,12,13
  • Sudden swelling of your face, hands or feet, or swelling, redness or pain in a leg.10,12,13
  • Belly pain that is severe or does not go away after resting, or pain just below the ribs.10,12,18
  • Regular tightenings or contractions, period-type pains, or backache that is unusual for you before 37 weeks, which can be signs of preterm labor.16,18
  • A fever of 100.4°F (38°C) or higher, or feeling hot, cold or shivery.12,13,16
  • Shortness of breath that comes on suddenly or happens when you lie flat, chest pain, a racing or pounding heart, or dizziness or fainting.12,13
  • Very itchy skin, especially on the palms of your hands or soles of your feet, or itching that is worse at night.19
  • Being sick so often that you cannot keep food or drink down, or signs of dehydration such as dark urine, peeing very little, or feeling dizzy.12,20
  • Thoughts of harming yourself or your baby. Get help right away, and call 911 or 999 if you think you might act on them.12,21

Questions about 14 weeks

Am I in the second trimester at 14 weeks?

Yes. Using the ACOG definition, the second trimester starts at 14 weeks 0 days and runs through 27 weeks 6 days.4

Can my provider hear the heartbeat at 14 weeks?

It may be possible. The NHS notes that around this stage your midwife might be able to hear the heartbeat using a handheld monitor placed on your belly.2

Is it too late for Down syndrome screening at 14 weeks?

No. In the US, cell-free DNA screening can be done from 10 weeks. In England, if you are more than 14 weeks pregnant you will be offered the quadruple test, a blood test between 14 and 20 weeks, instead of the combined test.5,7

Sources

  1. In utero analysis of fetal growth: a sonographic weight standardRadiology 181(1):129–133, 1991
  2. Week 14 – week-by-week guide to pregnancyNHS Best Start in Life
  3. Fetal development: stages of growthCleveland Clinic
  4. How Your Fetus Grows During PregnancyAmerican College of Obstetricians and Gynecologists
  5. Practice Bulletin No. 226: Screening for Fetal Chromosomal AbnormalitiesAmerican College of Obstetricians and Gynecologists, 2020
  6. Ultrasound ExamsAmerican College of Obstetricians and Gynecologists
  7. Screening for Down's syndrome, Edwards' syndrome and Patau's syndromeNHS (England)
  8. Your antenatal appointmentsNHS (England)
  9. Vaccinations in pregnancyNHS (England)
  10. Pre-eclampsiaNHS (England)
  11. Epilepsy and pregnancyNHS (England)
  12. Urgent Maternal Warning Signs and Symptoms (Hear Her campaign)US Centers for Disease Control and Prevention
  13. Pregnancy symptoms you need to get help forNHS (England)
  14. Vaginal bleeding in pregnancyNHS (England)
  15. Signs of going into labourNHS Best Start in Life
  16. Premature labour and birthNHS (England)
  17. Your baby's movementsNHS (England)
  18. Stomach pain in pregnancyNHS (England)
  19. Itching in pregnancyNHS (England)
  20. Severe vomiting in pregnancyNHS (England)
  21. Depression in pregnancyNHS (England)

Links checked November 12, 2026. Citing a source does not mean it endorses this site.

Written from the sources above and checked against them on 2026-11-12. Not reviewed by a clinician. Our editorial policy