Week 30
Your baby starts dreaming
Your baby's plumping up fast now, and those kicks pack serious power. There's a lot happening under that bump.

Baby's size this week
About the size of
a cabbage
- Length
- 15.7 in (40 cm)
- Weight
- 2.87 lb (1.3 kg)
About the size of a large cabbage, and getting stronger every day.
Sophie reads you this week
A short note, out loud·1:12
Fat, focus, and fetal achievements
Your baby is practicing survival skills. They’re swallowing amniotic fluid (hello, hiccups you can feel), blinking those new lashes, and even making breathing movements with that maturing diaphragm.
Fat is piling on fast. That once-see-through skin now looks plump and pink (thank you, vernix coating). Their brain is smoothing out wrinkles and building insulation for nerves, critical for life outside.
- Movement patterns shift. Space is tighter, so rolls become jabs. Count those kicks daily, you should still notice 10+ distinct wiggles in 2 hours.
- Sleep cycles emerge. REM sleep means dreaming (about what, who knows). Their wakeful times often match your rest, typical foreshadowing.
Plenty of healthy babies don’t turn head-down until 34 weeks.
Their bone marrow is fully on duty now, pumping out red blood cells without help from your placenta. And those tiny fingernails? Already at the tips of their fingers, you might need mittens post-birth.
Body changes and when to speak up
Your body is working overtime now. Shortness of breath happens as your uterus presses upward. Energy dips are brutal, even after rest. That's your metabolism running at 120% to fuel this growing baby.
Look out for swelling that doesn't fade with elevation or appears suddenly in your face. And don't ignore intense headaches that won't quit, these can be signs your blood pressure needs checking.
- Contractions. Practice ones (Braxton Hicks) feel like a hard, tightening wave that eases off. When they come regularly (every 10 minutes or less), start timing.
- Leaking fluids. A sudden gush or trickle that doesn’t smell like urine? Call your provider, your water might be breaking.
- Stabbing pelvic pain. As ligaments loosen for delivery, some lightning crotch (sharp jabs near your cervix) is typical. Constant pressure? Get checked.
Scans, shots, and prep work
Your glucose screening results are in. If you had elevated numbers, you’re likely deep into tracking blood sugar or adjusting meals. The diet tweaks are temporary, you’ve got this.
TDAP vaccine time. Many providers recommend this booster around now (to pass antibodies to your baby for whooping cough protection). It’s one quick shot, often during a regular visit.
- Non-stress tests start soon. If you’re high-risk, you might begin weekly monitoring around 32 weeks.
- Birth plan talks. Providers often discuss preferences now, pain management, delayed cord clamping, to prep your chart.
- Hospital tour signups. Many birthing centers open registration around this time.
You might hear ‘position check’ a lot. Babies often settle head-down by now, but breech isn’t a concern yet, there’s still wiggle room to flip.

