If you know the date of birth, you can enter it into this calculator and it will let you know if your kittens' development is on schedule. You can also work backwards with it to figure out how old a kitten is if you have no idea when the kitten was born.
http://www.dataweb.nl/~sham/misc8.html
Here is a web site that wil help you determine the gender of your kittens:
http://www.vetinfo.com/csexcat.html
http://www.dataweb.nl/~sham/misc8.html
Here is a web site that wil help you determine the gender of your kittens:
http://www.vetinfo.com/csexcat.html