It is possible ovaries cannot be saved due to damage from
cysts and/or damage that could be the result of surgery
to remove
cysts. Be prepared for the possibility. Triggering surgical menopause now (without HRT) might be the end result.
You can insist on them saving at least one ovary (if possible), but cysts can return, requiring more surgery in the future, often more complex due to adhestions/scar tissue from the prior surgery. One ovary is enough to delay menopause.