Merry Christmas to all who celebrate. A question about weight loss

For the past several months I've been on a weight loss journey courtesy of a lot of exercise and semaglutide. This has been a wonderful experience as I was down nearly 25 pounds. Then X days ago (looks at flair) I went from 5+, lost count, drinks a night to full abstinence, and this morning during my weekly weigh-in I was down 9 pounds over last week! Given the holidays I certainly haven't been eating less. So is this expected? Do y'all reckon I ought to see a doctor?

Anyhow, happy holidays and IWNDWYT.