Who knows when baby arrives?

Create a free prediction pool — share it with family and friends. Everyone guesses birth date, weight, and length. Lowest score wins.

How it works

1

Name it, set the due date, and publish. We email you a manage link — no app required.

2

Share your pool link. Everyone guesses date, time, weight, and length. Predictions stay hidden until baby arrives.

3

Enter the real details after the birth. Scores compute instantly and the leaderboard goes live.

The scoring

Closest overall prediction wins

Scores combine all three guesses — lower is better.

score = (minutes off × 1.0)
+ (grams off × 2.0)
+ (mm off × 5.0)

Scoring weights are published before any pool opens — always fair.

Enter your email and we'll resend your manage link. Clare keeps you signed in for 30 days, so you may be able to go straight back.

Step 1 of 3

Usually the parents' names or "Baby [surname]."

Pool name

Max 60 characters

Please enter a pool name.

Step 2 of 3

The pool stays open until you lock it — the due date is just for context.

Estimated due date

Please pick a future date.

Step 3 of 3

We'll email you a magic link to lock predictions, enter the birth details, and see the scoreboard. No password needed.

Your email

Please enter a valid email.

Check your email for your manage link. Share the link below with friends and family.

📬 Your manage link was sent to your email. Keep it — you'll need it to lock predictions and enter the birth details.