Can two betta female fish have babies?

yes thy can
Betta fish do not "have" babies. The male betta fish builds a bubble nest and then courts the female, she will display horizontal bars (not vertical) to let him know she's ready. They will do the betta "wrap" and she will drop eggs as he fertilizes them. At this point he scoops up the eggs and puts them in his nest. Her part is done and it is best to remove her for her safety. The male will care for the eggs until they hatch at which point his job is also done.