34 weeks pregnant: making room, and planning your last weeks at work
Your baby is curled up tight, your bump may shift lower, and the calendar starts to matter. Here is what this week really asks of you.
Updated October 13, 2026 · sources checked October 13, 2026
In short
At 34 weeks you are in the third trimester and your baby measures about 45 cm from head to heel, according to the NHS. If your baby moves down into your pelvis, breathing and heartburn may ease while trips to the toilet increase. The one thing to do this week: settle your leave start date and keep your 34-week appointment.
Where you are at 34 weeks
You are in the third trimester, which ACOG counts from 28 weeks to birth, and in the ninth month by Cleveland Clinic's grouping (weeks 33 to 36). If your dates came from an IVF transfer, your clinic's due date stands: ACOG notes it is set from the embryo's age and the transfer date. Our pregnancy week calculator shows your exact week and day.
Your baby this week
The NHS gives a length of about 45 cm from head to heel at 34 weeks and compares it to a cantaloupe melon. Your baby is curled up with legs bent towards the chest. Space is tight, but you should still feel shifting and see your bump change shape.
Cleveland Clinic notes that the vernix, the creamy coating that protects the skin, starts to thicken this week. If your baby is a boy, the NHS says his testicles are descending into the scrotum now; swollen-looking genitals at birth are common and settle within days.
By the end of month 9 (week 36), Cleveland Clinic gives a length of about 17 to 19 inches and a weight of 6 to 7 pounds. These are averages: your own baby's growth is checked by measuring your bump at each appointment.
Your body and common symptoms
- Lightening. When your baby moves head-down into the pelvis, the NHS says breathlessness and heartburn may ease. In exchange, you may need to pee more and walking can feel harder.
- Colostrum. Your breasts may feel heavy and leak a little yellowish early milk. The NHS suggests a light bra at night and a more supportive one in the day if they are sore.
- Sleep. Keep going to sleep on your side: the NHS says it helps blood flow to the placenta and is also kinder to your back.
- Work fatigue. If you stand all day or commute by public transport, this is often the week work starts to feel heavy. Breaks, a seat and lighter duties are reasonable things to ask for.
Is this normal? When to call
Pressure low in the pelvis, more frequent peeing, leaky breasts and painless tightenings are common at 34 weeks. Do not wait if something feels different.
Call your midwife or maternity unit straight away, day or night, if your baby is moving less, has stopped moving, or the pattern has changed; if you have bleeding or fluid leaking; regular or painful contractions (you are not yet 37 weeks); a severe headache, vision problems, pain just below the ribs or sudden swelling of the face, hands or feet. UK: maternity unit first, NHS 111 if you cannot reach them, 999 in an emergency. US: your OB-GYN or midwife, 911 in an emergency.
Appointments and tests around 34 weeks
| United States | United Kingdom (England) | |
|---|---|---|
| Routine check | Visits become more frequent in the third trimester; Cleveland Clinic describes every two weeks, then weekly near the due date | 34-week appointment: blood pressure, urine, bump measurement, baby's movements, mental health, birth preferences (NHS) |
| Vaccines | Tdap if not yet given (CDC: weeks 27 to 36); RSV vaccine during weeks 32 to 36 from September to January, or an antibody for your baby after birth (CDC) | RSV vaccine can still be given if missed, up until labour (NHS) |
| Group B strep | Swab test coming up at 36 to 38 weeks (ACOG) | Not routinely tested on the NHS; ask if you have had GBS before |
Your checklist for week 34
For your partner
Save the maternity unit number in your phone today, learn the route, and agree who takes over pets or older children when labour starts.
Previous and next week
Week 33: getting ready early · Week 35: pain relief options and colostrum · The third trimester · All weeks · Due date calculator
Questions parents ask
34 weeks pregnant is how many months?
Cleveland Clinic groups weeks 33 to 36 as the ninth month, so at 34 weeks you are in month 9. Your midwife or doctor will keep talking in weeks, because tests and decisions are timed by week.
Does my bump dropping mean labour is close?
Not necessarily. The NHS explains that this drop, called lightening, frees up space for your lungs and stomach, but you will probably still wait several more weeks before labour starts.
When is the earliest I can start maternity leave in the UK?
The NHS week-by-week guide says the earliest you can usually start is 11 weeks before the expected week of birth. If you want to change the start date you have chosen, give your employer at least 28 days' notice.
Sources
- NHS — Week-by-week guide to pregnancy, week 34 checked October 13, 2026
- Cleveland Clinic — Fetal development, week-by-week stages of pregnancy checked October 13, 2026
- NHS — Antenatal (pregnancy) care and appointments checked October 13, 2026
- GOV.UK — Maternity pay and leave, how to claim checked October 13, 2026
- CDC — Vaccine recommendations before, during and after pregnancy checked October 13, 2026
- ACOG — Group B Strep and Pregnancy checked October 13, 2026
- Beckmann and Stock (2013), Cochrane — Antenatal perineal massage for reducing perineal trauma (PMID 23633325) checked October 13, 2026
Mamavela explains; it does not replace your midwife, doctor or pediatrician, who know your situation. If something worries you, call them. In an emergency, call 911 (US), 999 (UK) or 112.