Infertility is not hereditary. Many things are but this is not. My mother had had some issues with this and when I got married I asked my Dr about it and he said one thing has nothing to do with the other. BH I got pregnant quite easily and am a mom.
Unless an injury has occurred there is no way to tell unless she has a work up which is not going to happen. It’s all in Hashem’s hands. Even if c’v she needs fertility treatments, bH medical advances are getting better by the day and what they have already accomplished is amazing.