Is it ok to workout months before a bbl surgery?

Hello dear!
Thanks for the question and provided information as well.
Yes, you can workout before your surgery. In fact, you should be as close to your goal weight as possible, before surgery, for best results. In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 30 or less.
l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)

    This really just comes down to caloric balance.  Working out is helpful as long as the fat stores do not become too little for transfer.Kenneth Hughes, MDLos Angeles, CA

Your surgeon needs to evaluate you prior to surgery to make sure you have enough fat for a good transfer. Consult a PS prior to losing weight. Otherwise I would encourage you to get fit prior to surgery. Seek a plastic surgeon who performs hundreds of these procedures, has great reviews and photos, and is an expert in this field.