Feline Pregnancy and Queening

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Pregnancy in cats should be determined as early as possible following mating. Early diagnosis helps ensure proper care. Pregnancy diagnosis can be accomplished by the following methods:

abdominal palpation of the uterus, individual fetuses, and fetal membranes from 20 to 30 days
x-ray of the abdomen from about 40 days
ultrasonic Doppler detection of placenta 1 circulation and fetal heartbeat from about the 4th week
enlargement and pink color of the teats and mammary glands from abou...Read the full article