The Third Trimester: What's Actually Normal
The third trimester (28 weeks to birth) is when prenatal visits become more frequent, physical discomfort tends to peak, and the practical question shifts from "is this pregnancy going well" to "am I ready." It's also when knowing the real signs of labor — as opposed to the practice version — actually starts to matter.
Last updated August 2026
Visits get more frequent
Standard care shifts to every two weeks from 28-36 weeks, then weekly from 36 weeks to birth — more frequent monitoring precisely because more can change quickly in this stretch. These visits typically track your blood pressure, urine, fundal height, and the baby's position and heart rate.
Two things almost everyone gets in this window
If you're Rh-negative, you'll get a Rhogam shot around 28 weeks to prevent your body from developing antibodies against an Rh-positive baby's blood. Around 36 weeks, a Group B Strep (GBS) swab checks for a common bacteria that's harmless to you but can affect a newborn during birth — a positive result just means IV antibiotics during labor, not a change to your birth plan otherwise.
Braxton Hicks versus real labor
Braxton Hicks contractions are irregular, don't get closer together or stronger over time, and often ease with a position change, walking, or hydration. Real labor contractions are the opposite: they come at increasingly regular intervals, get progressively stronger and closer together, and don't stop no matter what you do. Other real-labor signs include your water breaking (a gush or a slow trickle) and losing the mucus plug or "bloody show." Before 37 weeks, this same pattern is preterm labor, not practice — see Preterm Labor: The Signs That Mean Call Now for what to do.
Swelling, and what separates normal from a red flag
Some swelling in the feet and ankles by the end of the day is a normal part of the third trimester. Sudden swelling in the face or hands is not — paired with a severe headache, vision changes, or pain in the upper right abdomen, it's one of the ways preeclampsia often first shows up, and it needs same-day evaluation. See Preeclampsia and High Blood Pressure in Pregnancy for the full symptom list and what raises your risk.
Getting ready
This is a reasonable window to finalize a birth plan conversation with your provider, pack a hospital bag if you're delivering there, and get clear on exactly when to call versus head straight in — that threshold is specific to you and your provider's guidance, not a universal rule. If you've been doing kick counts, staying consistent with them matters more now than earlier, since a real change in your baby's usual movement pattern is one of the more reliable signals something is worth checking.
Worth discussing with your provider
Educational information only — general patterns that vary by person. This is not medical advice, a diagnosis, or a substitute for care from your own clinician.
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