Your baby's brain is in overdrive

What to expect

Your baby’s brain is in overdrive this week. Billions of neural connections form daily, and those wrinkled lobes are starting to look like a ‘real’ brain. All that development means they’re practicing skills, gripping the umbilical cord, reacting to loud noises, even dreaming (though we don’t know about what, yet).

Lungs are the headline act. While they’re not fully mature, surfactant, a soapy substance that keeps air sacs from collapsing, is increasing. If born now, your baby would likely need NICU time but has excellent survival odds.

Movement patterns shift

You’ll feel more rolls than kicks. Space is tight, so expect prolonged stretches where baby presses an elbow or knee outward, holds it, then slowly retracts. Hiccups (regular, rhythmic taps) might happen daily now, a sign their diaphragm is getting rehearsal time.

• Your uterus is crowding organs. Shortness of breath happens as lungs compete for space. Eating smaller meals helps, since your stomach can’t expand like it used to.
• Leaky breasts might surprise you. Some people notice yellowish colostrum (early milk) now, while others see nothing until after birth. Neither predicts your feeding journey.

Things to be aware of

Braxton Hicks contractions often ramp up now. These 'practice' tightenings are usually irregular and go away if you change positions. But if they become regular (like every 10 minutes) or painful, call your provider. It’s not always labor, but it’s worth checking.

Swelling can cross from 'normal' to concerning. Puffy ankles are common, but sudden swelling in your face or hands, especially with headaches or vision changes, could signal preeclampsia. Mention any dramatic changes.

• Sleep is getting complicated. Between heartburn, restless legs, and bathroom trips, you might feel like you’re auditioning for insomniac of the year. Try propping yourself slightly upright with pillows, and keep snacks simple (saltines, banana slices).
• That rib pain? Probably a foot. Baby’s running out of room, and limbs often wedge under your ribs. Changing positions, gentle stretches, or even applying light pressure can encourage them to shift.

What might happen

The third-trimester bloodwork window is open. Around now, many providers order tests for anemia and recheck your glucose if you had a borderline result earlier. Some also screen for infections like Group B Strep (though that’s often closer to 36 weeks).

You’ll likely discuss birth preferences soon. If birth planning feels overwhelming, start simple: write down three things that matter most to you (like 'delayed cord clamping' or 'walking during early labor'). Providers can work with concrete priorities.

• Breech worries? Still time. Many babies flip head-down by 34–36 weeks. If yours hasn’t yet, don’t panic, your provider may suggest exercises or discuss external versions later.
• Nesting energy (or lack thereof). Some people suddenly reorganize every closet; others are too tired to fold laundry. Both are normal. If you do get bursts of energy, pace yourself, overdoing it can trigger backaches or contractions.

You’re not lazy, you’re growing a whole nervous system in there.