hello,
I just had the same situation happen to me about 4 or 5 months ago. Took in a stray kitty, who was pregnant also, and ended up with a momma and 4 kittens. But they are pretty self sufficient, I didn't notice the kittens latched on right away either, but they will eventually find their way. I would basically just keep and eye out but leave them alone for the first few days(the kittens). I am sure that they will have no problems. Feed the momma the kitten formula dry food and just be aware that she may eventually try to relocate her kittens. So if you come home and the kittens aren't where they were before you left, she probably moved them. And yes, when they begin to walk around, they become little handfuls, and it is def. worse when they learn to climb. You can't keep them in one place for nothing!!! LOL But kittens are totally adorable, and I am sure your kittens will do just fine!!! And yes, you should start offering the kittens some moist kitten food at around 4-5 weeks, they will show an interest in it when they are ready. The kittens that we had were weaned and litterbox trained completely by 6 wks,but you should wait until the 7 - 8 wk. point to find them homes. Oh, one more thing, watch your toes!!! LOL The kittens we had here were born in my closet (of all places) and when they were about 5 weeks, they learned to all hide under the bed and pounce on your toes/feet when we walked by. But as long as you take care of the momma, she will do all the taking care of of the kittens. You basically just have to love and enjoy them!!!! Good luck and keep us posted!!