youngc1@gao.gov. American Samoa is a U.S. insular area that operates its customs and immigration programs according to its own laws and independent of the United States. As such, U.S. agencies, such as U.S. Customs and Border Protection, have no roles in operating the customs or immigration programs in American Samoa.
Quick Answer. A female dog goes into heat again between 4 and 6 months of having her puppies. The non-spayed dog goes into heat twice a year, and this is known as estrus. The estrus cycle lasts between 12 and 21 days but often varies between breeds and dog size.
When does a dog first come into heat? Female dogs come into their first heat between 6 and 24 months of age, with small breeds coming into heat sooner and large breeds later. Shouldnât my dog have at least one heat cycle? No! There is no medical reason for a dog to experience a heat. In fact, having your dog spayed before its first heat significantly reduces many health risks later in life.