First Trimester (Weeks 1-12): Adjustment and Protection
Body Changes
- Nausea and vomiting (morning sickness), breast tenderness, fatigue and drowsiness
- Frequent urination, mood swings, heightened sense of smell
Care Essentials
- Continue folic acid supplementation: 400-800 ug daily, at least until week 12 of pregnancy
- Relieve morning sickness: eat small, frequent meals, avoid an empty stomach, eat soda crackers and ginger tea
- First prenatal visit: have an ultrasound at weeks 6-8 to confirm fetal heartbeat and embryo
- Avoid harmful substances: stay away from tobacco, alcohol, radiation, and chemical toxins
- Moderate exercise: walking, prenatal yoga; avoid strenuous exercise
Second Trimester (Weeks 13-28): Stability and Growth
Body Changes
- Morning sickness eases, belly becomes noticeably rounded, fetal movement is felt
- Increased appetite, skin changes (stretch marks, pigmentation)
Care Essentials
- Down syndrome screening / NIPT (non-invasive prenatal testing): undergo Down syndrome screening at weeks 15-20
- 4D detailed anomaly scan: have a systematic ultrasound screening at weeks 20-24
- Glucose tolerance test: screen for gestational diabetes at weeks 24-28
- Calcium and iron supplementation: 1000 mg calcium and 30 mg iron daily
- Prevent stretch marks: apply stretch mark oil and control the rate of weight gain
- Prenatal education: talk to the baby and listen to soothing music
Third Trimester (Weeks 29-40): Preparation and Waiting
Body Changes
- Difficulty moving around, lower back pain, swollen legs and feet
- Braxton Hicks contractions, increased urinary frequency, poorer sleep quality
Care Essentials
- Count fetal movements: count for one hour each morning, noon, and evening; no fewer than 30 movements in 12 hours
- Fetal heart monitoring: have regular fetal heart monitoring after week 32
- Prepare the hospital bag: have delivery items ready before week 36
- Choice of delivery method: understand the pros and cons of natural birth and C-section
- Breathing exercises: learn the Lamaze breathing method
- Watch for signs of labor: bloody show, water breaking, regular contractions
Nutrition Supplement Summary Table for Each Pregnancy Stage
| Stage | Key Nutrients | Food Sources |
|---|---|---|
| First trimester | Folic acid, Vitamin B6 | Dark green vegetables, nuts, legumes |
| Second trimester | Calcium, iron, DHA | Milk, red meat, deep-sea fish |
| Third trimester | Protein, dietary fiber | Eggs, lean meat, whole grains |
Every stage of pregnancy has its own unique beauty. Taking good care of yourself is the best gift you can give your baby.
📌 Key Takeaways：A trimester-by-trimester guide to pregnancy body changes and essential care—folic acid, prenatal screenings, nutrition, and preparing for delivery.
