Foal Gestation Calculator
Fill in lines 1. and 2., Calculate on line 3.

1. Enter the last date the mare was bred:    
2. Enter estimated gestation period in days:
Normally calculated at 340 days.
days 
  
 Week 2 (2 weeks to 18 days) 
      - First Ultrasound or palpation to detect pregnancy		   / /
 Week 4 - 1st Month 
      - Second ultrasound or palpation to detect heart beat		   /  /
 Week 12 - 3rd Month 
     - Give all vaccinations recommended for your area
     - Worm the Mare		   /  /
 Week 20 - 5th Month 
      - First Equine Rhinopneumonitis Vacc 		  /  /
 Week 28 - 7th Month 
      - Equine Rhinopneumonitis Vacc		   /  /
 Week 36 - 9th Month 
      - Third Equine Rhinopneumonitis Vacc		   /  /
 Week 44 - 11th Month 
      - Give all vaccinations recommended for your area
         so mare produces antibodies in colostrum. 
      - Worm the Mare 
      - Begin watching for waxing and other signs of early foaling.		   / /
 Due Date   / /
 
Disclaimer: It is the mare owner's responsibility to consult their vet with regard to broodmare health care. This Calendar is a guideline for a personal use only.