You answered your own question in the question. it would be best to wait a few days, even better a week. Your BP will be more likely to eat once it gets settled in an used to the new surroundings. Its a big ordeal for a BP to get moved around to a new home.
I know it's hard to wait, but wouldn't you rather wait a few days and have a successful feeding, rather than try today, have a refusal, and then get all worried about why it won't eat?