@Kylee32
Hello Kylee!
What a beautiful home you have!
Regarding your question about the number of bedrooms in your home...
Personally, if there is only one 1 bed, and one place for people to sleep, I would only list your home as a 1 bedroom property.
While there are technically 3 bedrooms in your home, you have converted two of them and I assume there aren't beds in the office or gym.
What you don't want is to have someone book the home, thinking there are other bedrooms and they arrive and there is only 1 bed, and one bedroom.
With that said, I would be super clear that the home is a 1 bedroom property, with a separate office and gym.
Wishing you continued success with your listing!
Best,
John