Congratulations!!!!!! This is very exciting for you!
You are going to have so much fun (and less sleep) in a short time from now. , but it will be worth it.

And yes, Moma cats will eat a lot!

When my kitty Liza had 5 kittens (years ago), I did not get to see them being born- we were gone. I wish I had seen that, you're lucky.

Please keep us up to date on the progress of Moma and her kittens. And oh, it is really hard to tell the sex sometimes.