Home
Back
Heat Cycle Prediction Formula:
| From: | To: |
The heat cycle (estrus cycle) is the reproductive cycle in female dogs, typically occurring every 6 months, though this can vary by breed and individual. Each cycle has four stages: proestrus, estrus, diestrus, and anestrus.
The calculator uses the average interval between heat cycles:
Note: This is an average estimate. Actual intervals can range from 4-12 months depending on breed, size, and individual factors.
Details: Tracking heat cycles helps with breeding planning, prevents unwanted pregnancies, and allows early detection of reproductive health issues. Small breeds typically cycle more frequently than large breeds.
Tips: Enter the first day of your dog's last heat (when bleeding started). The calculator will estimate when the next heat is likely to begin based on the average 6-month interval.
Q1: Is 6 months accurate for all dogs?
A: No, this is an average. Small breeds may cycle every 4-5 months, while large breeds may go 8-12 months between cycles.
Q2: At what age do dogs first go into heat?
A: Typically between 6-24 months, depending on breed size. Smaller breeds tend to start earlier.
Q3: How long does a heat cycle last?
A: The entire cycle is about 6 months, but the fertile period (estrus) typically lasts 5-9 days.
Q4: Should I be concerned if my dog skips a heat?
A: Occasional skipped heats can be normal, but consult your vet if it happens repeatedly or your dog shows other symptoms.
Q5: Can I prevent my dog from going into heat?
A: Spaying is the only way to permanently prevent heat cycles. There are temporary medical options - consult your vet.