Lucyloo - a big hi from my Tinkerbelle to yours!!! How's your Tinkerbelle enjoying motherhood? Mine's just loving it...except at feeding time she has become more like a fun climbing frame for the kittens than a milk factory!
In response to your question, one of my little kittens (21 days) started licking and sucking on my finger and boy could I feel his teeth! So it must be in between weeks 2-3 that they get their teeth?
Are you keeping all of your babies? And are you in Swindon UK or is there a Swindon in the US or other part of the world?