The milk should fully come in soon. You can trim the fur around her nipples if need be. Are the kittens getting enough? Do they cry a lot? If they are crying frequently then they are hungry and you need to supplement.
hope everything is ok! poor babies!
None of my cats will eat cooked chicken. Don't feel bad. I even made them nonsalt broth and they gave me a look like-wth are you feeding me?!
xoxoxox