Is Renesmee allowed to have children?

I think so অথবা Jacob wouldn't have imprinted on her because he needs the নেকড়ে DNA to be passed down.

well
it was never stated that she would get her period??
but with her mothers human in her that she would, ,and her having a male companion, it would overthrow the vampire inside her..
and therefore allow to get children..
but not sure... use imagination

Yes, well..most likely, isn't the reason mutts imprint because that girl will make good little mutt babies? So I'm saying yes.