I would give it a try. It will be another 5 months before she kids. Keep a close eye on the worm load before she drops the baby. I firmly believe worm loads kill newborns.
Definitely, worms lead to malnourishment no matter if they look physically fine. I just treated her with ivermectin after finding some lice on her which will cover all parasites. I am going to wait until she turns one to begin breeding her, although I still have not worked out the stud breeding situation.