Second Trimester
17 Weeks Pregnant
Baby's skeleton is changing from soft cartilage to bone.
🍐
Your baby is the size of a Pear
13.0 cm
Crown-Rump Length
140 g
Approximate Weight
Week 1Week 13 — End of Trimester 1Week 27Week 42
🧒 Baby's Development This Week
At week 17, 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.
- Major organ systems are forming.
- Reflexes are developing.
- Facial features become more distinct.
- Bones are hardening.
- Nervous system matures.
🤰 Your Symptoms at Week 17
Week 17 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.
Fatigue
Rest when possible.
moderate
Rest when possible.
moderate
Nausea
Eat small, frequent meals.
mild
Eat small, frequent meals.
mild
Breast tenderness
Wear a supportive bra.
mild
Wear a supportive bra.
mild
Frequent urination
Stay hydrated but limit evening fluids.
moderate
Stay hydrated but limit evening fluids.
moderate
Mood swings
Talk to your partner or friends.
mild
Talk to your partner or friends.
mild
Body Changes
- Uterus is expanding.
- Blood volume is increasing.
- Skin changes may occur.
When to Call Your Doctor
- Severe abdominal pain or cramping
- Heavy bleeding or spotting
- Severe dizziness or fainting
✅ Week 17 Checklist
- Take prenatal vitaminsEssential
- Drink plenty of waterEssential
- Eat a balanced dietRecommended
- Exercise moderatelyRecommended
- RestEssential
❓ Frequently Asked Questions
Is it normal to feel tired?
Yes, fatigue is very common.
What should I be eating?
A balanced diet with plenty of fruits and vegetables.
Can I exercise?
Yes, moderate exercise is generally safe and beneficial.
When will I feel the baby move?
Usually between 16 and 25 weeks.
How much weight should I gain?
It depends on your pre-pregnancy BMI. Ask your doctor.
👩⚕️
Reviewed by Dr. Sarah Johnson, OB/GYNLast reviewed May 2024
Sources
- American College of Obstetricians and Gynecologists (ACOG)
- Intergrowth-21st Fetal Growth Standards
⚕️ Medical Disclaimer: This content is reviewed by medical professionals but is for informational purposes only. Always consult your healthcare provider for personalized guidance about your pregnancy.