Need some advice 🤦🏻‍♀️

So my fiancé and I have quite an age gap between us and my whole family is completely against it and badgers me often about leaving him. He thinks my family is going to break me to the point where I leave him, which makes me really uncomfortable considering we are getting married in literally 2 months yet he thinks I’m going to leave him? That’s not normal right? Like your not supposed to think that about someone your going to marry in 8 weeks. What do I do? Or what would you all do if you were in my situation?