Cat heat, called estrus, lasts between 3 and 14 days. The average length of time is one week. If a female cat doesn’t become pregnant, the cycle repeats every two to three weeks. More »

A cat's heat is between three and 14 days long, but most cats are in heat for about a week. If the cat does not mate during her heat, she may come back into heat in only a matter of days. More »

The frequency and length of time a dog goes into heat varies by breed, but is approximately twice a year for about 18 days. Although the heat lasts this long, the female dog is typically only open to mating for about nin... More »

According to Cat World, a cat's pregnancy typically lasts 63 to 65 days. However, the length of a pregnancy varies between cat breeds, and it is possible (although uncommon) for a cat's pregnancy to be as short as 60 day... More »

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Female cats do not normally bleed or have any vaginal discharge during heat. Symptoms of heat may include urine marking, restlessness, calling and behavioral changes. Heat usually lasts for four to six days. More »

A cat's heat is between three and 14 days long, but most cats are in heat for about a week. If the cat does not mate during her heat, she may come back into heat in only a matter of days. More »

Female cats do experience a menstrual, or estrus, cycle by the time they are 6 months old. Sterilizing a cat before it reaches the age of maturity and begins its estrus cycle is the only way to prevent pregnancy. More »