Small dogs can go into heat earlier, as they mature faster. This not unusual, some breeds as early as 5 months. Here's a good guideline:
So if there is discharge, you may want to put a diaper on her until it is over, and be sure to keep her away from any unneutered males, okay?Answer: There are four stages to the canine estrus cycle:
Proestrus: vaginal discharge, males attracted to females, females unwilling to mate. Length: 4-20 days.
Estrus: swollen vulva, yellowish vaginal discharge, mating occurs during this phase. Length: 5-13 days.
Metestrus (or Diestrus): period after estrus or mating. Length: 60-90 days. If pregnant, pregnancy lasts between 60-64 days in the dog.
Anestrus: period of inactivity (sexual and hormonal) between estrus phases. Length: 2-3 months.
Keep an eye on her, and call the vet to schedule an appointment to get her checked, and see when you can safely have her spayed, if that's your plan!
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