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.
Keep a close eye on her. Even if she is in a kennel, she can still end up pregnant. This is the fourth and final stage of the dog heat cycle when your dog is ânormalâ. This stage last about 60-90 days, at the end of which, the entire heat cycle starts again. Summary: We review the 4 stages of the dog heat cycle. Part of this article discusses the signs of heat you should be watching for to tell if your dog is in heat.