How do you make sure you're eating enough or right while pregnant?

Hi mummy, I’m pregnant (3rd pregnancy) right now and I simply just eat anything that I love but of course all in moderation. I’m one who can’t take any formulated milk but there’s one particular one that I can keep down; It’s the Similac Mum Maternal Milk. It have the nutritions that I need and it taste not bad (my own preference) as I’m also quite picky with my food intake. Anw, congrats on your pregnancy mummy! ❤️