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Pregnancy Guide/Second Trimester/Week 17

Week 17: Dad's Guide

Second Trimester • Baby is the size of a a wrench

Week 17 of 4043% there

👶 Baby Update

Size: A wrench

Baby's skeleton is changing from cartilage to bone. Fat is starting to form under the skin (needed for temperature regulation). The umbilical cord is getting stronger and thicker.

💕 What She's Going Through

Growing belly means her center of gravity is shifting. She may feel off-balance. Vivid dreams are common. Some women feel amazing right now.

💪 What You Should Do This Week

  • Start babyproofing research — it takes more time than you expect
  • If you have pets, start planning the introduction strategy
  • Make sure she's getting enough calcium and iron — offer to cook iron-rich meals

🚫 Don't Say This

You're so clumsy lately.

Her center of gravity literally shifted. She's not clumsy, she's adjusting to a new body.

🧠 Dad Hack

Non-slip bath mats and good lighting in hallways — her balance is off and midnight bathroom trips are frequent.

Ready to gear up?

Our interactive checklist tracks everything you need.

Baby Gear Checklist →