Quick Answer
Welcome to the third trimester. At 28 weeks, your baby weighs 1-1.3 kg and is about 38cm long — the size of a coconut. Baby may start turning head-down, eyes now respond to light, and you should start daily kick counting from this week. If you’re Rh-negative, the Anti-D injection is due now. Prenatal visits increase to every 2 weeks. Ab final countdown shuru — 12 weeks to go.
Baby Development at Week 28
Your baby has hit some major milestones:
- May turn head-down — many babies start settling into the head-down (cephalic) position, though some won’t turn until later. Both are normal at this point
- Eyes respond to light — if you shine a flashlight on your belly, baby may turn toward or away from the light
- Weighs 1-1.3 kg — nearly doubled in weight over the last 4 weeks. Rapid weight gain continues
- Brain development accelerating — billions of neurons forming. The brain’s surface is developing more folds
- Lungs continuing to mature — surfactant production increasing, but lungs still not fully ready
- Fat layers building up — baby is filling out and looking less wrinkled
- Eyelashes, eyebrows, and head hair — all present now
Survival rates if born now: 80-95% depending on NICU facility. Every additional week still matters significantly for brain and lung maturity.
Your Body at Week 28
Third trimester symptoms are kicking in. Your body is working harder than ever.
Common Symptoms
| Symptom | What’s Happening | What Helps |
|---|---|---|
| Shortness of breath | Uterus pressing diaphragm, increased oxygen demand | Take it slow, sleep propped up. Normal unless sudden or severe |
| Back pain | Extra weight, loosened ligaments, shifted posture | Prenatal yoga, warm compress, pelvic support belt |
| Braxton Hicks | More noticeable and frequent in the third trimester | Hydrate, change position. Regular/painful = call doctor |
| Frequent urination | Baby pressing on bladder. Also increased blood volume means kidneys work harder | Don’t cut back on fluids — just go when you need to |
| Swelling | Feet, ankles, hands. Worsens through the day | Elevate feet, stay hydrated, reduce salt, compression socks |
| Trouble sleeping | Belly size, back pain, leg cramps, anxiety about delivery | Left side sleeping, pillow support, relaxation techniques |
| Leaking colostrum | Breasts preparing for breastfeeding — yellowish fluid may leak | Normal. Use breast pads if needed |
Kick Counting — Start Now
From this week, kick counting becomes a daily practice:
- How: Pick a time when baby is usually active (often after a meal or in the evening). Lie on your side or sit comfortably
- What to count: Any movement — kicks, rolls, punches, pushes. Hiccups don’t count
- Target: 10 movements in 2 hours
- If baby doesn’t reach 10 in 2 hours: Have a cold drink or snack, try again. If still below 10, call your doctor immediately
- Why it matters: Reduced fetal movement can be an early sign of fetal distress. Kick counting is a simple, free tool that can save lives
Tests & Screenings Due
Anti-D Immunoglobulin Injection
If you’re Rh-negative (A-, B-, O-, AB-), you need the Anti-D injection at 28 weeks:
- Why: If your baby is Rh-positive (likely if the father is Rh-positive), your blood may develop antibodies against baby’s blood. This doesn’t usually affect the first pregnancy but can cause serious problems in subsequent ones
- When: 28 weeks prophylactic dose
- Also needed: After any bleeding episode, after amniocentesis, and after delivery (if baby is confirmed Rh-positive)
Third Trimester Blood Work
- Hemoglobin — anemia worsens in the third trimester. If Hb < 11 g/dL, your doctor will adjust iron supplements
- Blood sugar — recheck if previous GDM screening was borderline
- Repeat antibody screen for Rh-negative mothers
GDM Screening — Deadline
If you still haven’t done the GDM test, this is the absolute last week. Get it done.
Routine (Now Every 2 Weeks)
- Blood pressure
- Urine for protein and sugar
- Fundal height
- Fetal heart rate
- Weight
Nutrition This Week
Third trimester: you need about 460 extra calories/day (ICMR) — that’s up from 350 in the second trimester.
What to Prioritize
- Iron — critical. Third trimester anemia is very common in India. Take iron supplements with vitamin C, avoid with tea/coffee (blocks absorption)
- Calcium: 1000 mg/day — baby is rapidly storing calcium in bones now
- Protein: 78g/day — baby is gaining weight fast
- DHA/Omega-3 — brain is developing billions of neural connections
- Fiber and fluids — constipation often worsens in the third trimester
- Complex carbs — sustained energy. Roti, rice (moderate), oats, daliya
What to Avoid
- Excess salt — blood pressure management is crucial in the third trimester
- Large meals — eat small and frequent. Less heartburn, better digestion
- Lying flat after eating — worsens reflux
- Empty calories — mithai, biscuits, chips. You need nutrient-dense food
When to Call Your Doctor
Third trimester red flags — take these seriously:
- Reduced fetal movements — fewer than 10 in 2 hours after trying twice. Don’t wait until tomorrow
- Vaginal bleeding — any amount
- Fluid gushing or leaking — PPROM. Go to the hospital
- Regular contractions before 37 weeks — timing them matters (every 5-10 minutes for an hour)
- Severe headache, visual changes, sudden facial/hand swelling — preeclampsia
- Severe upper abdominal pain — especially right side
- Fever with chills
- Sudden, severe itching — especially palms and soles
What’s Coming Up
- Week 29: Space getting tight. Baby starts storing calcium, iron, and phosphorus in bones
- Week 30: Body fat accumulating rapidly, including brown fat for temperature regulation. Brain maturing rapidly
- Weeks 28-36: Visits every 2 weeks. Growth scans to monitor baby’s size. Delivery planning begins
Aapke Sawaal (Common Questions)
Kick counting kaise karein? Kitni der mein 10 movements honi chahiye?
Roz ek fixed time pe (jab baby active hota hai — usually khana khane ke baad ya raat ko) aaram se baith ya let jaayein. Har movement count karein — kick, roll, punch sab. 2 ghante mein 10 movements honi chahiye. Agar nahi ho rahi toh kuch thanda piyein, thodi der chale, aur dobara try karein. Agar phir bhi 10 na hon toh turant doctor ko call karein.
Anti-D injection kya hota hai? Side effects hain?
Anti-D injection ek antibody hai jo Rh-negative mothers ko di jaati hai. Yeh aapke body ko baby ke against antibodies banane se rokti hai. Injection safe hai — common side effects mein injection site pe dard ya halka bukhar ho sakta hai, jo 1-2 din mein theek ho jaata hai. Yeh bahut zaroori hai — isko skip mat karein.
Third trimester mein kitna weight badhna chahiye?
Total pregnancy mein 10-12 kg weight gain normal hai (BMI pe depend karta hai). Third trimester mein roughly 0.5 kg per week badhna chahiye — mostly baby ka weight, amniotic fluid, aur blood volume. Agar achanak bahut zyada weight badhe (1 kg+ in a week) toh doctor ko batayein — yeh fluid retention ya preeclampsia ka sign ho sakta hai.
