🍂 Third Trimester Guide (Weeks 28-40)
PH
PureHealthness Editorial Team · Health writers & reviewers
📝 Last reviewed: August 2026
✔ Transparent sourcing · Some articles are AI-drafted, then reviewed & fact-checked by our team
📝 Last reviewed: August 2026
What happens: baby gains most weight now; you may feel breathless as the uterus presses up, and Braxton Hicks contractions are common.
Exercise: walking, swimming, side-lying exercises, squats for birth prep, pelvic tilts. Stop if dizzy, bleeding, leaking fluid or contractions.
Sleep: side-lying with a pillow between knees (left side preferred).
Prepare: pack the hospital bag by week 36, learn the warning signs (pre-eclampsia: severe headache, vision changes, sudden swelling).
Emergency signals — contact your provider immediately: heavy bleeding, severe headache with vision changes, sudden severe swelling, fever, fluid leakage, decreased fetal movement, or contractions before 37 weeks.
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