NEW YORK, NY - AUGUST 15: White House Chief of Staff Gen. John Kelly looks on as US President Donald Trump speaks following a meeting on infrastructure at... Drew Angerer The disconnect between the White Houseâs John Kelly and his boss
While many females will hold to a fairly steady schedule of coming into season about every six months, it can vary. Some girls will only come into heat once year, while others may even come into season every four months. However, these extra seasons are not always fertile.
How long a dogs period last? The length of a female dog's heat varies, but is generally around three weeks. She is not receptive to mating during the first week or so, which is usually when the most spottâ¦ing of blood occurs. Males will show interest in her throughout her heat, both when she is receptive and not.