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.
The first thing that you will notice is a swollen vulva and a bloody discharge. This is the beginning of the heat and the eggs will not be released yet. Male dogs will already be more drawn to her, but she may not show any interest until this phase ends in 6-10 days. In the second stage of heat your dog will be fertile.Her bleeding will change from pink to a sandy color, and she will be more welcoming to male attention. This stage will last approximately 6-10 days, but can last as long as 20 days in some dogs.ost mature female dogs will go into heat every 6 months, but it is common for them to skip a cycle. The heat cycle itself will last approximately 3 weeks. It is best to wait until after your dog is two years old before you breed them so their body can fully develop before they bare puppies.