Pregnancy week 29: the fattening season in full swing

The baby now gains weight like it's paid to — and its bones are banking your calcium daily. This week is about supply lines: the plate, the tablet hours, the iron-calcium timetable.
Supply lines
From here to birth, the baby's job description is one word: gain. Fat for warmth, muscle for strength, minerals for bone — and every gram of it ships from your plate through the cord.
The heaviest requisition this trimester is calcium — the skeleton is hardening daily and draws hundreds of milligrams a day. Short supply doesn't spare the baby; it debits your own bones. The dairy-and-tablet routine is you paying yourself back.
The old timetable rule matters more than ever now: iron and calcium at separate hours (they block each other), iron away from tea and milk, calcium best with food. The tablets work as scheduled — or barely at all.
Your baby this week
The baby is about thirty-eight centimetres and thirteen hundred grams — adding around two hundred grams a week now, and about to accelerate.
The head is growing to fit the folding brain. Muscles and lungs continue their build; the marrow is fully in charge of red blood cells.
The kicks now have elbows and knees in them — and less room to wind up. Expect fewer somersaults, more shoves, jabs and stretches; the pattern changes shape but not presence — the daily count carries on regardless.
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Changes in your body
The waddle is official, the bump leads every entrance, and getting up from low seats is a two-stage launch. All of it is mechanics, not weakness.
Varicose veins, piles and ankle swelling share one cause — a heavy uterus on the return plumbing. Feet up when sitting, sides when sleeping, no long stone-still standing, and the water intake full.
Breathlessness peaks in these weeks — the diaphragm has lost territory. Talk-test your exertion: able to speak in sentences is fine; gasping mid-sentence means slow down. Relief comes around thirty-six, when the baby drops.
What to do this week
Audit the calcium hour: two dairy servings a day (milk, curd, paneer) plus the prescribed tablet — and confirm the tablet isn't riding in the same hour as the iron.
The count has a week's rhythm now — you know the baby's prime time. If any evening fails the ten, the instruction hasn't changed: same-day call.
Walk the hospital route once at rush hour — know the door, the admission counter, where the night entrance is. Twenty minutes now saves an hour of circling later.
Start the breastfeeding module of your antenatal class if it hasn't come yet — latch, positions, the first-hour feed. That one hour of theory is worth more than any single item in the baby bag.
Week 29 at a glance
The week's essentials in one place. Your doctor may adjust these for your situation.
| Item | In week 29 |
|---|---|
| Main event | Rapid gain; bones banking calcium daily |
| Baby's size | ~38 cm, 1.3 kg — ~200 g/week |
| Movements | Fewer flips, more jabs — pattern changes, count continues |
| Supply rule | Iron and calcium at separate hours |
| Possible symptoms | Waddle, veins, swelling, peak breathlessness |
| Recce | Hospital route walked once, night entrance found |
| Class | The breastfeeding module — this month |
When to see a doctor at once
The standing list — movement slump, bleeding, rhythmic tightening, watery discharge, the triad, fever, urinary burning, calf swelling, night itch: same-day, every time.
Swelling gets one more calibration: soft, both-ankle, end-of-day swelling that's gone by morning is the ordinary kind. Sudden swelling, morning swelling, or face-and-fingers swelling (rings stuck that fit last week) is the BP kind — reading the same day.
This article is general information only and no substitute for personal medical advice. The person who can advise you knowing your health, your medicines and your previous pregnancies is your obstetrician, or the doctor at your nearest health centre.
Work out your due date
Enter the first day of your last period and your cycle length — your estimated due date, this week's count and the anomaly scan window all appear right here.
It is only an estimate — most babies aren't born on the exact date. A first-trimester scan dates a pregnancy more accurately; in the end, your doctor's date is the one that counts.
Frequently asked questions
I can't drink milk
how do I make the calcium? — Curd, paneer, ragi, til, channa and the tablet cover it without a single glass of milk. Lactose trouble ≠ calcium fail; tell the doctor so the tablet dose reflects the plate's reality.
The baby's kicks are sometimes under my ribs now
why there? — A head-down baby's feet point up — rib kicks are usually good news about position. Painful lodgings respond to the arm-over-head stretch and a lean to the other side.
How much weight should I be gaining now?
Around half a kilo a week is the usual third-trimester rate, but the target is personal — the doctor tracks yours against your starting build. A sudden jump inside a few days is a swelling question, not a food question — that gets a BP check.
Everyone says 'sleep now while you can'
but I can't sleep! — Third-trimester insomnia is real and the advice is mildly cruel. Take rest in instalments: naps count, feet-up counts, lying with eyes shut counts. The pillow fort, early dinner and the bedside notepad remain the working tools.
Sources
Every clinical figure on this page is taken from the guidelines below. Where our numbers and your doctor's differ, ask which guideline they follow.
- WHO. WHO recommendation on calcium supplementation during pregnancy (2013)Supports the claim that calcium is the heaviest mineral requisition in the third trimester for fetal bone hardening, and that calcium supplementation is recommended during pregnancy.
- WHO. WHO recommendations on antenatal care for a positive pregnancy experience (2016)Supports the recommendation that iron and calcium supplements should be taken at separate times, and that daily iron and folic acid supplementation is part of routine antenatal care.
- NICE. Antenatal care (NG201) (2021)Supports the guidance on monitoring for signs of pre-eclampsia (sudden or facial swelling, raised blood pressure), recognising physiological discomforts of late pregnancy such as varicose veins, ankle swelling and breathlessness, and the need for same-day assessment of warning signs.
- ICMR. Nutrient Requirements and Recommended Dietary Allowances for Indians (2020)Supports the advice that two dairy servings per day (milk, curd, paneer) plus a supplement can meet calcium needs in pregnancy, and that non-dairy sources such as ragi and til are valid calcium alternatives for lactose-intolerant women.
Reviewed by
- Nakul Phatak — CEO, theAsianparent India & IndonesiaHead of theAsianparent India; father of one
- Roshni Chugani — Head of Marketing, theAsianparent India & Singapore12 years in the mother-and-baby space; mother of two
Published by: theAsianparent editorial team





