I hate other people caring about my pregnancy

I don't know what's wrong with me but my partners parents and my parents are lovely but I just despise that they're excited for me to give birth and I can't even explain why. Like my mum made my scan photo her phone background and my partners mum keeps talking about it and saying she wants to babysit and things and I'm just not okay with anything, I've had a miscarriage before so I feel extremely possessive about my child and the thought of her being with other people terrifies me, and I've seen videos of people having their babies kissed and what's happened and I've imagined the same situation happening which has made me hate people and weary of them before she's even born, I don't know how to stop being so psycho about it, my brains just set on that I'm the one growing her and it's no one else's business but I don't want to feel like that I want to be excited to share her with everyone but I'm just not.