Judgmental people in my family

My husband is 21 and I am 20, we’re trying and haven’t really told many. That being said my mom is my actual best friend I let it slip to her that we’re excited about making a family, my mom has been making sly hurtful remarks about it’s too early, you’ll regret getting pregnant at 20, etc. I don’t really think she means to hurt me she’s just so blunt with the way she feels and it’s really starting to bug me. Anyone have this issue? How did you deal with it?