15 month old

So my daughter was 22 pounds a month ago I took her to the doctor today she’s 20 pounds and 2 oz . She’s an extremely picky eater . I feel like I’m failing her as a parent . I try new things I’m always cooking she don’t really seems to be interested an anything . Plus I’m pregnant again ... I’m devastated how can I be a parent when I’m failing my daughter now 🤦🏽‍♀️. Any tips or advice . No JUDGEMENT PLEASE