Seeking advice: Relationship w/ my mom

Hello! I’m currently 30 and TTC and my mom is very apprehensive about becoming a grandma. She’s very young at heart, which I love about her, but she says she’s too young to be a grandma (she’s 56). She does know we’re TTC but always makes comments to me about how it’s ok to wait to have kids, your life is not your own when you become a mom, how I should consider only having one child, etc. etc. She has not once said anything positive about me becoming a mom one day and it’s really starting to bother me.

Any advice on how to handle this? Thanks in advance!