17 Weeks Pregnant: What to Expect and Top Tips for You
Welcome to week 17! You’re well into your second trimester, and your baby is growing stronger every day. This is an exciting phase as you might be feeling more connected to your little one. Let’s explore what’s happening this week and how to make the most of it.
Baby at 17 Weeks: Growing and Developing Fast
Your baby is now about the size of a pomegranate, measuring roughly 13cm from head to bottom and weighing around 140g. Here’s what’s happening:
- Developing fat: Your baby is starting to build fat layers to help regulate their body temperature after birth.
- Loud sounds: They can now hear louder noises like a dog barking or music playing.
- Joints and bones: The skeleton is hardening, and joints are more mobile, allowing for plenty of movement.
- Sweat glands: These are starting to form under their skin.
- Heartbeat: Their heart is now pumping blood at an impressive rate of about 24 litres per day.
Your baby is becoming stronger and more responsive, preparing for life outside the womb.

Your Body: What to Expect at Week 17
You may notice some new physical changes and symptoms this week:
- Weight gain: A gradual increase is normal as your baby grows.
- Backaches: As your belly grows, you might feel more strain on your lower back.
- Increased appetite: Your baby’s growth spurt might make you hungrier.
- Baby movements: You might start feeling light flutters, called “quickening.”
- Skin changes: Your skin might feel more sensitive or start developing darker patches (melasma).
Remember, every pregnancy is different, so symptoms can vary.
Top Tips for Week 17
Stay healthy and happy with these tips:
- Support Your Back: Use a supportive chair or pillow to ease back strain.
- Eat Small, Frequent Meals: This helps maintain energy and prevents heartburn.
- Stay Active: Prenatal yoga or gentle stretching can help relieve tension and improve flexibility.
- Take Care of Your Skin: Use sunscreen and a gentle moisturiser to protect against pigmentation.
- Connect with Your Baby: Talk or sing to your baby; they can hear your voice now!
- Schedule Your Midwife Appointment: Keep up with regular check-ups to monitor your baby’s progress.
- Sleep Comfortably: Consider a pregnancy pillow for better support while sleeping.
- Hydrate Regularly: Drink plenty of water to stay energised and aid digestion.
Fun Fact: Your Baby Can Get Hiccups
At 17 weeks, your baby’s diaphragm is developing, which means they might start having little hiccups. These can sometimes feel like rhythmic flutters.
When to Call Your Doctor
Contact your healthcare provider if you experience:
- Severe abdominal pain or cramping.
- Heavy bleeding or unusual discharge.
- Persistent headaches or vision changes.
- Sudden swelling in your hands, feet, or face.
Your midwife or doctor is there to guide you, so don’t hesitate to reach out with any concerns.
Look Ahead: What’s Next?
In the weeks to come, your baby’s movements will become more pronounced, and you’ll continue to see your bump grow. Exciting milestones are just around the corner!
You’re doing an incredible job, mum-to-be! Celebrate this special time and all the amazing changes happening in your body. You’ve got this!
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