Congratulations! So glad to hear the babies are healthy after the scare with the fire.
I've heard that it's extremely difficult to express milk from a cat. (Can't say I ever tried). If the babies appear satisfied, sleeping after they feed, I wouldn't worry. If you have a postal scale or kitchen scale , you can weigh them. They should be gaining a few grams every day.
Awww!!! Its a baby Cali and a baby Guardien! And Then the lone black one... Wow, Guardien really seems to love Cali, being there with her and everything, those that is slightly odd that he'd eat the placenta...
I'm glad everything went alright after all that waiting And I'm glad that it wasn't really 12 kittens