Horse Gestation Calculator
Accurately predict your mare's foaling date and track pregnancy milestones with our advanced calculator
Breeding Information
Mare Information
Gestation Results
Earliest Expected Foaling
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Average Expected Foaling
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Latest Expected Foaling
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Enter the breeding date to see current pregnancy status.
Pregnancy Timeline
Today
🐴 Key Foaling Signs to Watch For
| Time Before Foaling | Physical Signs | Behavioral Signs |
|---|---|---|
| 4-6 weeks | Udder begins developing | Increased appetite |
| 2-4 weeks | Abdomen drops, vulva relaxes | More affectionate or irritable |
| 1-2 weeks | Teats fill with wax plugs | Restlessness, frequent lying down |
| 24-48 hours | Milk appears (may drip) | Isolation from herd |
| 6-12 hours | Muscles relax, tailhead rises | Pacing, sweating, frequent urination |
| Imminent | Water breaks (allantoic sac) | Lying down and getting up repeatedly |
Note: These signs vary between mares. Some may show all signs clearly, others very few.
🐎 Mare Care Tips During Pregnancy
Nutrition
Increase feed quality in last trimester. Provide balanced diet with proper vitamins and minerals.
Vaccinations
Vaccinate 4-6 weeks before foaling to boost antibody levels in colostrum.
Exercise
Moderate exercise maintains muscle tone but avoid strenuous work in late pregnancy.
Deworming
Deworm 30 days before due date with pregnancy-safe products.
Monitoring
Check temperature daily - a drop of 1°F often occurs 12-24 hours before foaling.
Environment
Provide clean, safe foaling area with good footing and minimal disturbances.
📋 Foaling Preparation Checklist
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Note: This calculator provides an estimate based on average gestation periods. Actual foaling dates may vary by ±30 days. Always monitor your mare closely as the due date approaches and consult with your veterinarian.