Trimester 2
16 Weeks Pregnant
At week 16, your baby is focusing on growth and refining their movements. They are starting to hear the sounds of your heartbeat and voice, and their tiny muscles are getting stronger as they practice kicking and rolling in the womb.
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Your baby is the size of a Avocado
12 cm
Length
100 g
Weight
Week 1Week 13 - End of Trimester 1Week 27Week 42
Baby's Development This Week
At week 16, your baby is focusing on growth and refining their movements. They are starting to hear the sounds of your heartbeat and voice, and their tiny muscles are getting stronger as they practice kicking and rolling in the womb.
- The musculoskeletal system is maturing — movements become more coordinated.
- Toenails begin growing.
- The circulatory system is fully functional.
- The fetus can grasp with its hands.
- Eyes are moving slowly under closed lids.
- About 11.6cm — the size of an avocado.
Your Symptoms at Week 16
Week 16 is part of the 'honeymoon phase' of pregnancy. You likely have more energy now and your bump is starting to show. You might notice changes in your hair and skin, and you're probably starting to feel the wonderful sensation of your baby moving.
Back pain
Use a support pillow; prenatal yoga helps. (moderate)
Use a support pillow; prenatal yoga helps. (moderate)
Constipation
Eat 25-30g fiber daily; prune juice helps. (moderate)
Eat 25-30g fiber daily; prune juice helps. (moderate)
Pregnancy brain (forgetfulness)
Use lists, reminders, and a planner. (mild)
Use lists, reminders, and a planner. (mild)
Increased vaginal discharge
Wear breathable cotton underwear. (mild)
Wear breathable cotton underwear. (mild)
When to Call Your Doctor
- Severe back pain that doesn't improve with rest
- Painful contractions or regular cramping
- Vaginal bleeding or unusual discharge
- Decreased fetal movement if you've been feeling it
Week 16 Checklist
- ✓Schedule your mid-pregnancy anatomy ultrasound (18-22 weeks) (essential)
- ✓Begin sleeping with a pregnancy pillow (recommended)
- ✓Start looking into childbirth education classes (recommended)
- ✓Research cord blood banking if interested (optional)
Frequently Asked Questions
Continue Your Pregnancy Journey — Week 16
← →
Week 15 of Pregnancy
Review what happened last week with your baby's development
← →
Week 17 of Pregnancy
What's coming next week — new developments and symptoms to expect
Guide
Second Trimester Overview
Everything happening during your second trimester — symptoms, tests, and milestones
Symptom
Heartburn & Indigestion
Safe remedies and foods to avoid during pregnancy
Symptom
Back Pain in Pregnancy
Exercises, positions, and when back pain is serious
Tool
Kick Counter
Start counting fetal movements — kicks should begin around week 18
Related
Anatomy Scan Ultrasound
The detailed 20-week scan that checks all major organ systems
Nutrition
Second Trimester Nutrition
Iron, calcium, and the best foods for your growing baby
Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider for personalized guidance about your pregnancy.