How Big Is Mommy’s Belly Baby Shower Game

If you want a baby shower activity that’s quick, interactive, and always gets guests talking, the How Big Is Mommy’s Belly baby shower game is a perfect choice. Guests try to guess the size of the mom‑to‑be’s belly using string, ribbon, or paper — and the mix of wildly off guesses and surprisingly accurate ones always makes this game a crowd favorite.
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What Is the How Big Is Mommy’s Belly Game?
How Big Is Mommy’s Belly is a simple baby‑shower guessing game where guests estimate the mom‑to‑be’s belly size. Each person cuts or tears a piece of string (or ribbon, yarn, or paper) to the length they think matches her belly circumference. To prevent backups, I created a yarn card that the guests can pickup from the table and then trim down to the their size estimation. This keeps lines from forming as people wait for the yarn. If you’d like to use my yarn printable, here it is for FREE.
This activity is sweet, easy, and works for any group size.
Why Guests Love This Game
Guests enjoy this game because it’s:
- Simple and fast
- Funny — especially when guesses are way off
- A great icebreaker
- Perfect for all ages
- A sweet way to celebrate the mom‑to‑be
How to Play
- Give each guest a piece of string, ribbon, yarn, or paper.
- Guests cut or tear the length they think matches the mom‑to‑be’s belly.
- Collect all the pieces.
- Measure each one around the mom‑to‑be’s belly.
- The closest guess wins.
I used a sign from an amazing kit that I bought on Etsy for our classic bear baby shower. If you’re interested in the sign you see in the photo, you’ll see that kit on Etsy here.
Tips for Hosting
- Use neutral‑colored or theme-color ribbon for a clean look.
- Have multiple scissors ready or pre‑cut lengths guests can trim (to avoid line back up).
- Keep a measuring tape nearby for accuracy.
- If the mom‑to‑be prefers not to be measured, use a balloon belly or a printed silhouette instead.
Final Thoughts
The How Big Is Mommy’s Belly baby shower game is a sweet, simple baby shower game that gets guests laughing and guessing in seconds. It’s easy to set up, fun for all ages, and always a memorable moment for the mom‑to‑be.
For more fun, modern ideas your guests actually enjoy, head over to my full guide on baby shower games guests actually enjoy.

