It is not advisable to breed a 10-month-old Exotic Shorthair cat. At this age, the cat's body is still developing, and premature breeding can significantly increase the risk of complications such as difficult labor. It's best to wait until the cat is at least 1.5 years old before considering breeding.

Why 10 Months is Too Early for Breeding
While Exotic Shorthair cats typically reach sexual maturity around seven months old, their bodies, especially their pelvic structure, are not yet fully developed. Breeding at this early stage, even though it might seem like it could increase the chances of conception, greatly increases the risk of serious complications, particularly for the mother cat. These complications can include dystocia (difficult birth) and other health problems. The cat's skeletal system, muscles, and overall organ function are not fully mature at 10 months. A pregnancy at this age can hinder the cat's overall growth and development, leading to a smaller size, weakened constitution, shortened lifespan, and can also increase the risk of giving birth to kittens with health problems and a lower survival rate.
Ideal Breeding Age for Exotic Shorthairs
The ideal time to breed an Exotic Shorthair cat is when they are around 1.5 years old, which usually coincides with their second heat cycle. By this time, the cat's body has reached full maturity, making it a safer and healthier time for breeding. Breeding at this point reduces risks associated with early pregnancy, and increase the likelihood of a successful and healthy pregnancy and litter.
Therefore, for the health and well-being of your Exotic Shorthair, it is best to wait until they are at least 1.5 years old before considering breeding. Prioritizing the cat's health and maturity ensures a safer and more successful breeding process for both the mother and her future kittens.