Pregnancy Week 34: Preparing for Labor

Week 34 is the sprint week for labor prep. You're 3 weeks from being considered full term, though most babies wait until closer to their due date. Baby's lungs are almost mature, kick counts continue to matter, and Braxton Hicks are getting more frequent — which is exactly why this is the week to nail down what real labor looks like and what to do when it starts.

This guide walks through what's happening at 34 weeks pregnant, how to distinguish real labor from Braxton Hicks, what to pack in your hospital bag, when to call, and the signs that mean go to the hospital now.

This article is educational, not medical advice. Pregnancy is deeply individual, and your obstetrician or midwife is the person who knows your history. We're the team behind Vyve, the private AI pregnancy and cycle tracker, and Vyve is a tracking tool — not a diagnostic one.

What's happening this week

You're 6 weeks from your due date and 3 weeks from being full term. Baby's lungs continue producing surfactant, brain is developing rapidly, and weight is climbing about 200 grams a week. Most babies are head-down by now, though some are still turning. Appointments continue every two weeks; weekly visits typically start around 36.

If you want to see what's ahead, check week 35 and week 37, when baby is officially considered full term.

Baby's size and development at week 34

At 34 weeks pregnant, your baby is about the size of a cantaloupe — roughly 45 centimeters (17.7 inches) from head to heel, weighing around 2.1 kilograms (4.7 pounds).

Here's what's happening this week:

• Lungs are nearly mature. Surfactant production continues, preparing baby to breathe air.
• Brain development is rapid. The central nervous system is maturing quickly.
• Fat continues accumulating. Baby is filling out; skin is less wrinkled.
• Baby is likely head-down. Most babies have turned by now.
• Kidneys are fully developed.
• Immune system is developing. Baby is receiving antibodies from you across the placenta.
• Fingernails have reached the fingertips.
• Movement is more limited but should still be strong and consistent — space is getting tight.

Your symptoms and body changes

Common experiences:

• Pelvic pressure. Baby is heavier and lower.
• More frequent Braxton Hicks. Practice contractions are common now.
• Fatigue. Sleep is hard and you're carrying more weight.
• Shortness of breath. Should ease a bit when baby drops in the coming weeks.
• Heartburn. Often peaks now.
• Swelling. Feet, ankles, hands. Watch for sudden or severe swelling.
• Backache and hip pain. Especially at night.
• Nesting. Real for many people.
• Increased vaginal discharge. May become a bit thicker.
• Anxiety about birth. Absolutely normal. Talk to your partner, birth team, or a counselor if it's overwhelming.

Real labor vs Braxton Hicks

Knowing the difference matters. Here's a side-by-side:

Basic rule of thumb: if contractions are getting stronger, closer together, and don't stop with rest or water — it's likely real. If they irritate but ease with hydration and rest — it's likely Braxton Hicks. When in doubt, call.

Hospital bag checklist

Pack now. Here's a solid starting point — adapt to your hospital's rules and your preferences.

For you (labor + recovery):

• ID, insurance cards, hospital paperwork
• Birth plan (printed copies)
• Loose, comfortable clothes (labor gown or nightshirt, going-home outfit)
• Robe and non-slip socks or slippers
• Nursing bras and heavy-flow pads
• Toiletries: toothbrush, hair ties, lip balm, face wash, deodorant, glasses/contacts
• Phone charger with long cable
• Snacks and drinks (for after labor)
• A pillow from home (marked so it doesn't get lost)
• Comfort items: massage tool, essential oils, playlist, dim light, whatever helps

For baby:

• Going-home outfit (season-appropriate)
• Hat and socks
• Swaddle blanket
• Diapers and wipes (some hospitals provide, some don't)
• Installed car seat (required for discharge)

For partner or support person:

• Change of clothes
• Toiletries
• Snacks and phone charger
• Pillow and blanket if staying overnight
• Camera if you want photos

When to call your doctor

Print this or save it. Call your clinician (or go to the hospital) if you have any of these:

• Regular painful contractions — especially if 5 minutes apart lasting a full minute for an hour (first-time labor) or 10 minutes apart (second/later)
• Waters breaking — gush or persistent leak
• Any vaginal bleeding — more than light spotting after a cervical check
• Decreased fetal movement — noticeable drop from baby's normal pattern
• Severe headache — especially with vision changes or upper abdominal pain (possible preeclampsia)
• Sudden severe swelling — face, hands
• Fever above 38°C / 100.4°F
• Severe or one-sided abdominal pain
• Painful urination or blood in urine
• Fainting or dizziness that doesn't pass

When in doubt, call. The maternity ward has heard everything, and being cautious is the right approach.

Nutrition this week

You need about 450 extra calories a day. Continue your prenatal. Keep the focus on iron, calcium, protein, DHA omega-3s, fiber and water. Small frequent meals help heartburn.

Yoga & safe exercise

Keep moving but expect to modify. Walking, swimming, prenatal yoga, and pelvic floor / hip-opening work continue to be great. Skip anything on your back, avoid overheating, and pace yourself.

What to ask your doctor

• Is baby head-down? If not, what are our options?
• What are your criteria for coming to the hospital?
• What number do I call outside office hours?
• How would we handle preterm labor if it started now?
• Do I need Group B strep testing this week or the next?
• Do I need the Tdap vaccine if I haven't had it?
• Is my blood pressure ok — anything to watch for?
• When is my next appointment and what will we check?

3 tips for this week

1. Actually pack the hospital bag. Not "make a list" — pack it, and put it near the door or in the car. Baby doesn't check due dates.
2. Install the car seat and get it inspected. Fire stations often do free inspections. Most hospitals won't discharge without one.
3. Log contractions if you're feeling them. Time between contractions, how long they last, whether they're getting stronger. Vyve makes this easy.

How Vyve helps you track your pregnancy

Vyve is a privacy-first AI pregnancy and cycle tracker built for people who don't want their body's most personal data sold to advertisers. At 34 weeks, Vyve helps you time contractions, log kick counts, and note the small symptoms worth mentioning at your next appointment.

Vyve runs its AI on your device, encrypts your data, and doesn't require an account. Your pregnancy is yours.

Frequently asked questions

How big is baby at 34 weeks pregnant?

At 34 weeks, baby is about the size of a cantaloupe — roughly 45 centimeters (17.7 inches) from head to heel, and weighing around 2.1 kilograms (4.7 pounds). Baby's lungs are nearly mature.

How can I tell real labor from Braxton Hicks?

Real labor contractions are regular, get closer together, get stronger, and don't stop when you change position or hydrate. They usually start in the lower back and wrap around to the front. Braxton Hicks are irregular, don't get stronger, ease with rest or hydration, and are usually more uncomfortable than painful. If you're unsure, always call your clinician — they'd rather hear from you.

When should I pack my hospital bag?

By 34 to 36 weeks. Baby could arrive any time in the final weeks, and you don't want to be packing between contractions. Pack a bag for you, a bag for baby, and a bag for your partner or support person if applicable. Keep it near the door or in the car.

Is baby's head-down position confirmed at 34 weeks?

Most babies are head-down by 34 weeks, but some haven't turned yet. If baby is still breech, your clinician may discuss options like external cephalic version (ECV) around 36–37 weeks, though many babies turn on their own before then. Ask your clinician about your baby's current position.

When should I go to the hospital at 34 weeks?

Go now (or call) if you have: regular, painful contractions (especially if 5+ minutes apart lasting an hour), waters breaking or persistent leaking, any bleeding, decreased fetal movement, severe headache with vision changes, or severe abdominal pain. At 34 weeks, this could be preterm labor and deserves urgent evaluation.

This article is educational and not medical advice. Always consult your obstetrician or midwife for personal medical guidance.