Baby's length (head to heel, NHS)
about 45 cm
WHO 2017 reference weight (median)
2,312 g
Month of pregnancy
8th–9th
Trimester
3rd trimester
Until due date
~42 days

How many months is 34 weeks pregnant?

<p>At 34 weeks, about 7 months and 25 days have passed since your last period: the end of the 8th month and the start of the 9th. Weeks are counted from the first day of your last period (days 238–244).</p>

🍼 Your Baby's Development

According to the NHS, your baby is about 45 cm from head to heel. Your baby is curled up in the womb with the legs bent towards the chest. Space is tight, but you should still feel your baby shifting around and see your bump change shape. In boys the testicles are descending from the abdomen into the scrotum; the NHS notes that the genitals may look swollen at birth and that this settles in a few days.

  • ACOG (weeks 33 to 36): bones harden while the skull stays soft and flexible; fingernails reach the fingertips; arms and legs look chubby; the baby may turn head down for birth.

🤰 Changes in Your Body

Your baby dropping: the NHS says some symptoms may seem to vanish. Your baby's head moves down into the pelvis in stages (engagement) and your bump may drop a little. With more room for your lungs, breathlessness can ease, and with less pressure on your stomach, heartburn may improve. On the other hand, you may need to pee more and walking can be harder. The NHS stresses that this does not mean labour is about to start; you will probably wait several more weeks.

Breasts: small amounts of yellowish milk (colostrum) may leak. The NHS describes colostrum as early milk rich in antibodies and suggests a light bra at night and a supportive bra during the day if your breasts are sore.

Sleep: the NHS advises sleeping on your side, which is better for blood flow to the placenta and less likely to cause backache. NICE advises not going to sleep on your back after 28 weeks.

🩺 Check-ups and Tests This Week

NICE NG201 (34-week appointment, for everyone): blood pressure is taken, urine is checked for protein, and fundal height is measured if it has not been measured in the past 2 weeks. Your baby's movements and your birth preferences, with the benefits and risks of each option, are discussed.

Turkish Ministry of Health (antenatal care guideline, 2026): there is no specific visit at 34 weeks; the 4th visit is at 36–38 weeks. Meanwhile, weekly blood pressure checks are advised, and seeing a doctor if it is above 130/80 mmHg.

US (UpToDate, 2026): visits are every 2 weeks until 36 weeks. UpToDate advises checking how the baby is lying (head or bottom first) from 34 weeks, so that external cephalic version (ECV) and the route of birth can be discussed if the baby is breech.

🔎 What an Ultrasound May Show This Week

NICE does not recommend routine scans after 28 weeks in uncomplicated single pregnancies; after 36 weeks the bump is felt at every appointment to look for a breech baby, and a scan is offered if breech is suspected. According to UpToDate, 5 to 7 percent of babies are breech at 34 weeks.

🤔 What Is Normal and When to Seek Care

SymptomUsuallySeek care if
Easier breathing, peeing more often

This may be because your baby has dropped into the pelvis; it does not mean labour is about to start (NHS).

If it comes with regular contractions, waters breaking or bleeding, seek care; before 37 weeks these can be signs of preterm labour.

Movements feel different

As space gets tight the type of movement can change, but the number stays about the same after 32 weeks (RCOG).

If movements reduce, stop or change pattern, call without waiting for the next day (NHS).

Backache

One of the common symptoms on the NHS list; sleeping on your side can help.

If it comes with contractions, period-like cramps or increasing pelvic pressure, it may be preterm labour (UpToDate).

⚠️ When to Seek Care Immediately

  • Vaginal bleeding, even if light
  • Pain, redness or swelling in your calf
  • Shortness of breath or chest pain
  • A severe or persistent headache; blurred or double vision
  • Fever (a danger sign in the Turkish Ministry of Health guideline; fever above 38 °C, or fever with signs of infection, is an emergency referral criterion)
  • Severe or persistent abdominal pain
  • Fluid leaking from the vagina
  • Foul-smelling vaginal discharge
  • A seizure (fit)
  • Your baby moving less than usual, no longer moving, or a change in the usual pattern of movements
  • If your blood pressure is 160/110 mmHg or higher, go to an emergency department without waiting; call 112 if you also have a headache, vision problems, pain at the top of the tummy or breathlessness. (Under the Turkish Ministry of Health guideline, the reading is repeated after 15 minutes at the health facility and, if it is still high, the woman is referred as an emergency via 112; NICE recommends assessment the same day.) 140/90 mmHg or above also needs a doctor.
  • Persistent pain at the top of the tummy or in the upper right tummy (under the ribs), a possible sign of pre-eclampsia (UpToDate)
  • Swelling of the face, or sudden, rapidly increasing swelling of the hands or legs
  • Unexplained itching
  • Before 37 weeks: regular or painful contractions; period-like cramps, low backache or increasing pelvic pressure (possible signs of preterm labour)

Most of these are danger signs or emergency referral criteria in the Turkish Ministry of Health guideline; call your maternity unit or go to the nearest emergency department without waiting. The NHS says to call straight away, even in the middle of the night, if your baby's movements reduce, stop or change pattern, without waiting until the next day. NICE asks for hospital assessment within 24 hours if blood pressure is 140/90 mmHg or above and the same day at 160/110 mmHg or above; it recommends a hospital review for any unexplained bleeding after 13 weeks, and anti-D for women who are RhD negative and at risk of isoimmunisation.

❓ Frequently Asked Questions

How many months is 34 weeks pregnant?

About 7 months and 25 days have passed since your last period: you are at the end of the 8th month and moving into the 9th.

How much does a baby weigh at 34 weeks, and how long is it?

According to the 2017 WHO fetal growth charts, the 50th percentile for estimated weight at 34 weeks is 2,312 g, and the 10th to 90th percentile range is 1,985–2,659 g. According to the NHS, the baby is about 45 cm from head to heel. The WHO values come from ultrasound measurements in low-risk pregnancies in ten countries; the authors note differences by country, maternal factors and fetal sex, and that birth weight varies considerably even under optimal conditions. Your own baby's estimated weight is measured on ultrasound and has a margin of error (UpToDate, 2026).

Is a baby born at 34 weeks premature?

Yes. NICE treats labour before 37 weeks as preterm. UpToDate defines 34+0 to 36+6 weeks as the late preterm period.

My baby has dropped: is labour close?

Not necessarily. The NHS says the baby dropping into the pelvis may feel like a relief but does not mean labour is about to start; you will probably wait several more weeks. Some babies do not engage until labour begins.

How should I sleep at 34 weeks?

On your side. The NHS says this is better for blood flow to the placenta and reduces backache; NICE advises not going to sleep on your back after 28 weeks and using pillows to keep your position.

📚 Sources of Information on This Page

  • Turkish Ministry of Health Antenatal Care Management Guideline (2026)
  • NICE NG201 Antenatal care and Schedule of antenatal appointments (2021)
  • NHS Best Start in Life: Week-by-week guide to pregnancy, week 34 (accessed 2 November 2026); Your baby's movements (2024)
  • ACOG FAQ156: How Your Fetus Grows During Pregnancy (2024; last reviewed March 2026)
  • RCOG Your baby's movements in pregnancy (2019)
  • UpToDate Prenatal care: Second and third trimesters (2026); Overview of breech presentation (2026); Preterm prelabor rupture of membranes (2026)
  • WHO fetal growth charts: Kiserud T, et al. PLoS Med 2017;14(1):e1002220 (corrections e1002284, e1002301 and e1003526 do not change Table 11)

Last updated: . All sources have been confirmed with their latest versions. This content is for educational purposes and is not a substitute for a doctor's examination.