Never had interest in kids will it change?

I have never showed interest in having kids to the point I get anxiety around baby’s I’m 20 and married but still have never even held one I get very awkward when people talk about me having children. I’ve never felt like I had the motherly instinct that everyone talks about. I’m worried that it won’t change because my husband loves babies in children when he is around them it looks as though he is meant to be a dad. And the way I feel I’m scared I won’t ever be able to give that to him. He knows how I feel so we don’t really talk about it.