Why do I feel no connection

I honestly am so confused because I can feel like I want a connection with my daughter but it’s just not happening. I can feel excited I just don’t feel the connection I hoped to feel once I got pregnant. I had a previous miscarriage and throughout this entire pregnancy I have felt so scared to lose this baby that I feel like the minute I get excited something will go wrong it’s made it impossible to grow a connection with my own child. I’m not sure what to do and nobody really understands I mean I can’t even understand it myself.