I've been due a "Yearling" badge on Chemistry https://chemistry.stackexchange.com/users/5354/feetwet for days and not received it.
1 Answer
You're at exactly 200 reputation, meaning you've earned 199 (since you always start with 1).
At least, that's how I read the badge description.
From the FAQ
Have a reputation of at least (number of years as an active user) × 200 + 1 (starting reputation)