GUIDE
7 Months Pregnant
Month 7 covers weeks 28 through 31 — the third trimester begins and your baby's brain is developing at an incredible pace.
Being 7 months pregnant marks the start of the final stretch. The third trimester officially begins at week 28, and with it comes more frequent prenatal visits, the start of kick counts, and a new set of physical challenges. Your baby's brain is forming billions of neurons, all five senses are now functional, and weight gain accelerates to about half a pound per week.
Be prepared from day one
What Happens During Month 7
Month 7 of pregnancy (weeks 28-31) marks the beginning of the third trimester and a period of incredible brain development. Your baby's brain is the star of this month, forming the complex folds and grooves that give the cerebral cortex its distinctive appearance.
At week 28, the third trimester officially begins. Your baby can blink, dream during REM sleep, and track light that passes through the womb. Week 29 brings continued brain development as the surface forms wrinkles and folds to increase neural capacity.
By week 30, your baby is gaining about half a pound per week — a pace that will continue through delivery. Week 31 marks the point where all five senses are fully functional. Your baby can see light, hear sounds, taste amniotic fluid, feel touch, and even smell.
| Week | Baby Size | What Is Happening |
|---|---|---|
| Week 28 | Eggplant | Third trimester begins — baby can blink, dream, and track light |
| Week 29 | Butternut squash | Brain surface developing wrinkles and folds for increased capacity |
| Week 30 | Cabbage | Baby gaining about half a pound per week — red blood cell production |
| Week 31 | Coconut | All five senses functioning — baby can respond to light and sound |
Your Body at 7 Months Pregnant
The third trimester brings a new set of physical challenges. Your baby is growing rapidly, and your body is feeling the effects. Braxton Hicks contractions become more noticeable — these irregular, painless tightenings are your uterus rehearsing for labor. They are normal but should not be regular, intensifying, or painful.
Insomnia often begins or worsens during month 7. Between the physical discomfort of your growing belly, frequent trips to the bathroom, and the mental anticipation of what is ahead, getting a full night of sleep becomes harder. Sleeping on your left side with a pillow between your knees is the recommended position.
Swollen feet and ankles are common as your body retains more fluid and the uterus puts pressure on the veins returning blood from your legs. Elevating your feet, staying hydrated, and wearing comfortable shoes helps. Sudden or severe swelling, especially in the face or hands, should be reported to your provider immediately.
Common Symptoms at Month 7
- Braxton Hicks contractions becoming more noticeable
- Shortness of breath from the uterus pushing on the diaphragm
- Back pain and pelvic pressure intensifying
- Swollen feet and ankles, especially at the end of the day
- Insomnia and difficulty finding a comfortable sleeping position
- Heartburn and acid reflux
- Frequent urination returning as the baby presses on the bladder
- Third-trimester fatigue — different from first-trimester exhaustion
- Nesting urge beginning — the desire to organize and prepare
Third-trimester discomfort is a sign your body is doing exactly what it needs to do. Talk to your provider about managing symptoms.
When to Call Your Doctor
- Regular contractions before 37 weeks — could indicate preterm labor
- Leaking fluid from the vagina
- Vaginal bleeding
- Significant decrease in fetal movement
- Severe headache with visual changes or upper abdominal pain
- Sudden severe swelling in face or hands
From week 28 onward, certain symptoms require prompt evaluation. Do not wait for your next scheduled visit.
Looking Ahead
At month 8 (weeks 32-35), your baby gains weight rapidly as the lungs approach full maturity. This is the ideal time to pack your hospital bag and finalize your birth plan. For a complete overview of the final trimester, see our third trimester guide.
This guide is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any questions about your pregnancy.
