Finding it hard to connect to my baby 😔

I’m 21 weeks with my second son and I’m finding it really hard to connect with him. My first boy was a rainbow baby and although I initially found it hard to connect- as soon as we knew his gender I felt it very easy to bond. This time I just don’t feel the same connection to my baby and it’s breaking my heart. Is there anything I can do to help with bonding before he is born?

Please be kind, I haven’t even opened up to my husband about how I am feeling 🥺