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.
Dogs hit puberty â that is, come into heat for the first time â somewhere between eight and fourteen months of age although, in rare cases, an individual can reach puberty as early as six months or as late as two years. The second heat of your dog will give you an indication of her heat interval.our petâs heat cycle can be a source of stress. However, once you learn how long your dog stays in heat and the accompanying signs, you will realize that its management is not difficult at all.