1. Create a Dog Profile

Start by entering your dog's basic information:

• Breed (optional)
• Size (required) - This helps calculate more accurate predictions
• Age (required) - Must be between 0.5 and 20 years

2. Record Heat Cycles

When your dog starts a heat cycle:

• Enter the start date
• Add any relevant notes (optional)
• Click "Record Cycle" to save

3. Track Current Stage

The calculator will show:

• Current stage of the heat cycle
• Progress within the current stage
• Expected duration and end date

4. View Predictions

Based on recorded cycles, you'll see:

• Predicted date of the next heat cycle
• Number of days until the next cycle
• Average cycle length for your dog

5. Manage Your Data

You can:

• Export data for backup
• Import previously saved data
• Clear all data if needed