Eleven Weeks to Go
Twenty-nine weeks. You are in the third trimester, and your body knows it. The fatigue is back. Rolling over in bed requires a strategy. And somewhere between the heartburn and the midnight bathroom trips, you may have noticed that your baby's kicks feel different now, more purposeful, less like flutter and more like deliberate movement.
That shift is not your imagination. Your baby has grown from a fluttery presence into a genuinely active passenger with preferences, reflexes, and a brain that is building itself at a pace that will never happen again in a human life.
You're two-thirds of the way there. The hardest months are behind you. The most exciting ones are coming fast.
Your Baby This Week
Your baby is about the size of a butternut squash, measuring roughly 15.2 inches (38.6 cm) from head to heel and weighing approximately 2.5 pounds (1.1 kg) [1][2]. The body is filling out as fat deposits build under the skin, giving your baby the rounded look of a newborn rather than the thin, translucent appearance of earlier development.
The brain is in one of its most dramatic growth phases. The cerebrum (the thinking, feeling part of the brain) is developing deep folds and grooves called sulci. These folds increase the surface area of the brain without requiring more skull space, packing more processing power into a compact form [2]. The connections between neurons are forming rapidly, and the brain is beginning to regulate body temperature, sleep cycles, and sensory responses.
The lungs are practicing breathing movements, pulling amniotic fluid in and out in rhythmic contractions. This isn't breathing air; it's strengthening the diaphragm and respiratory muscles for the real thing [1]. Bone marrow is now the primary site of red blood cell production, a shift that started last week and will continue after birth.
Baby's Position and Kick Counts
By week 29, many babies have settled into a head-down position, though there is still room to move and repositioning is common over the next several weeks. Your provider will begin checking fetal position at appointments and will note whether your baby is cephalic (head-down), breech (bottom or feet first), or transverse (sideways) [3].
Around this time, your provider may also introduce kick counts as a simple daily monitoring tool. The idea is straightforward: once a day, typically after a meal when your baby tends to be most active, count how long it takes to feel ten distinct fetal movements. Most babies reach ten movements within two hours [3].
What you're looking for is not a specific number but a pattern. You know your baby's rhythms better than anyone. A sudden decrease in movement, or a baby who was reliably active and has gone quiet, is worth a call to your provider. It is almost always nothing, but it is the kind of nothing worth confirming.
- Normal movement: Active, strong kicks, rolls, and jabs that fit your baby's usual pattern
- What to do if movement seems reduced: Drink something cold, lie on your left side, and count for two hours. If you do not reach ten movements, call your provider
- Trust your instincts: If something feels different, contact your care team. You are the expert on your baby's baseline
Your Body at Twenty-Nine Weeks
- Shortness of breath: The uterus is pressing upward against the diaphragm, reducing lung capacity. You may feel winded after simple tasks. This is normal and peaks around 31 to 34 weeks before the baby drops.
- Swelling: Mild swelling in feet and ankles at the end of the day is common and usually harmless. Swelling that involves your hands and face, or that comes on suddenly, should be reported to your provider right away as it can be a sign of preeclampsia [4].
- Sleep disruption: Between frequent urination, difficulty finding a comfortable position, and leg cramps, quality sleep can feel impossible. A pregnancy pillow that supports your belly and back simultaneously can help. Sleeping on your left side improves blood flow to the placenta.
- Leg cramps: Stretching your calves before bed and staying well hydrated can reduce nighttime cramping. Magnesium-rich foods like nuts, seeds, and dark leafy greens may also help, though talk to your provider before adding supplements.
- Heartburn: The growing uterus puts pressure on your stomach. Eating smaller meals more frequently, staying upright after eating, and avoiding spicy or acidic foods can help manage symptoms.
The Emotional Side
"I keep wishing the pregnancy would just be over. Then I feel guilty for wishing that." Wanting to not be pregnant anymore while simultaneously wanting a healthy baby is not contradictory. By week 29, the physical toll is significant: disrupted sleep, pelvic pressure, shortness of breath. Wishing for relief does not mean wishing against your child. It means you are exhausted. If the wish is accompanied by feelings of hopelessness or detachment from the pregnancy, bring it up with your provider.
What MomDoc Wants You to Know
Your 29-week appointment is a good time to bring up anything that has been on your mind: sleep, movement concerns, signs of preeclampsia, or questions about what the next few weeks will look like. Your provider wants to hear from you between visits too, not just at scheduled appointments.
The kick count conversation matters. It's not about counting for the sake of counting. It's about staying connected to your baby's patterns and giving yourself a simple, reliable tool to use if something ever feels off. Most of the time, everything is fine. And knowing that from your own data rather than from anxiety is a small gift to yourself in the weeks ahead.