Well welcome you are in the right place, there are plenty of knowledgeable cat people here to answer your questions! I do believe you need to take them in to the vet though to have them all checked over soon. Sorry to hear that she had to have a litter and I really hope you can find them all good homes.
And thank you for planning to have her spayed! Kids with kittens will no doubt give you plenty of kodak moments!
__________________
Windy~Smoke~Buddy~Palomine~Fagan~Asker~Mickey Blue Eyes
Venus
“The greatness of a nation and its moral progress can be judged by the way its animals are treated” -Mahatma Gandhi
"We're the renegades, we're the people; With our own philosophies; We change the course of history; Everyday people like you and me"- R A T M