WebMD: Pregnancy and Gestation in Cats pets.webmd.com 63 to 65 days http://pets.webmd.com/cats/cat-pregnancy-gestation pets.webmd.com pets.webmd.com pets.webmd.com 4 months old WebMD: Gravidez e gestação em gatas [em inglês] WebMD: Pregnancy and Gestation in Cats Web MD: Pregnancy and Gestation in Cats