Illustration of a baby at week 14 inside the womb in cross-section, with the placenta and umbilical cord — Womb in cross-section, enlarged to show detail. Not true size.

Second trimester, week 14

14 weeks pregnant: Hello, second trimester

Size of a: Peach
Length: 8.7 cm crown to rump
Weight: 43 g approximate
Heart rate: 110–160 bpm typical range
Due date: 182 days away 35% of the way

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Checked against the sources listed on this page. Not reviewed by a clinician. Last updated 5 November 2026. How we check.

At 14 weeks pregnant, your baby is about the size of a peach: roughly 8.7 cm from crown to rump, weighing about 43 g. You’re in your second trimester, with about 26 weeks to go until your due date.

Your baby this week

Facial muscles are working. The baby can squint, frown and grimace.
Fine, soft hair called lanugo begins to cover the body and helps keep the baby warm.
The neck is longer, so the chin no longer rests on the chest. The body is growing faster than the head.

Your body this week

Often called the “honeymoon trimester”: nausea typically eases and energy returns.
A small bump may be showing, especially in second and later pregnancies.
Your heart is pumping more blood per minute than before pregnancy, and your resting pulse may be a little higher.

Typical weight gain so far: 0.9–2.5 kg
Your uterus: Just above the pubic bone

Weight gain range is for a pre-pregnancy BMI of 18.5–24.9 (IOM guideline). Your provider may advise differently.

Scans, tests and checkups

This week

NIPT (cell-free DNA blood test) Blood test
A blood test that screens for Down syndrome (trisomy 21), trisomies 18 and 13, and can report sex chromosomes. It is a screening test. A high-chance result is confirmed with CVS or amniocentesis.

Baby’s sex: Sex from ~10 weeks, typically >98–99% accurate
From week 15

Second-trimester (quad) screening Blood test
A blood test (AFP, hCG, estriol, inhibin-A) for chromosomal conditions and neural tube defects, if you didn’t have first-trimester screening or NIPT. The NHS offers it at 14–20 weeks.
From week 15

Amniocentesis Diagnostic
Diagnostic test on a small sample of amniotic fluid. Offered after a high-chance screening result. The NHS gives the miscarriage risk as about 1 in 200. A 2019 review estimated the added risk at about 0.3%.

Baby’s sex: Diagnostic, only done for medical reasons
From week 18

Anatomy scan (anomaly scan) Ultrasound
A detailed ultrasound of the baby’s brain, heart, spine, face, kidneys, limbs and growth, plus the placenta position and fluid. The NHS usually does it at 18–21 weeks.

Baby’s sex: Sex usually visible if the baby’s position allows. Ask if your hospital reports it

See the full scan and test timeline

Real size, next to an adult hand

Adult hand 18.5 cmbaby 8.7 cm

Growth curve

Typical weight by week: WHO median from week 20, approximate before that. Healthy babies vary widely.

When to call your midwife or doctor at 14 weeks

Call your midwife, doctor or maternity unit straight away, day or night, if you have any of these:

Vaginal bleeding, or a gush or steady trickle of fluid.
Severe belly pain that doesn’t go away.
Regular tightenings, period-like cramps or lower back pressure that keep coming. This could be early labour.
Fever of 38 °C (100.4 °F) or higher, or pain or burning when you pee.
Pain or swelling in one leg, chest pain, or sudden shortness of breath. These can be signs of a blood clot.
Feeling very low, hopeless or anxious most days. If you feel you might harm yourself, get emergency help.

Based on NHS and ACOG guidance. This list isn’t complete. If something feels wrong, call anyway. In an emergency, call your local emergency number.

Tip for this week

Now is a good time for a dental check-up. Pregnancy gum inflammation is common, and routine dental care is safe.

Myth or fact?

Is the “pregnancy glow” real?

Partly true

Partly. Around 40–50% more blood volume and more active oil glands can make skin look flushed and dewy. Not everyone gets it.

Read the evidence

Common questions at this stage

All common questions

Questions people ask about week 14

Can you see the gender on an ultrasound at 14 weeks?

It is sometimes possible for an experienced sonographer, but position and image quality matter a lot. Most people find out at the 18–22 week anatomy scan, or earlier via NIPT.

Does nausea stop at 14 weeks?

For most people it improves or stops somewhere between 12 and 20 weeks. In one study, about half had relief by 14 weeks and 90% by 22 weeks. A few have it throughout pregnancy. Persistent vomiting should be discussed with your provider.

References

Advice differs between countries, so follow your own care team’s plan. Weights from week 20 are the WHO median, and earlier weights are approximate. How we check this.