Antenatal depression?

I’m 14 weeks pregnant and I keep having thoughts of not being food enough for my baby and feeling like disappearing now so my baby never has to meet me and have me as their mother.

I’ve heard so much about post-partum depression but nothing about antenatal depression and I’m honestly lost.

My grandmother killed herself when my mum and uncle were 2 and 6 months old due to post-partum depression so that worries me even more for myself.

I am seeking help from professionals but I just wanted to know if anyone else has had similar feelings? This isn’t just doubts or mild concerns about my motherhood but something deeper. I wanted the be the best mum I can for my baby but I’m also terrified of never being good enough