Pregnant but don't feel like a mum

I'm a FTM and due in January but I've been feeling weird.

I love the fact that I'm pregnant and I can't wait to meet my little baby and have my own little family, but at the same time I don't feel like it'll make me a mum? I feel like the baby will just be a family member or something as opposed to my actual CHILD and I just have no idea why I'm feeling like this 🤷🏻‍♀️

Did anyone else feel like this? This was a total surprise pregnancy so I'm not sure if that's a factor in how I feel. Just feel odd knowing I'll give birth to this baby but also not feel like that makes me the mother.