342 days at most( almost a year)
It is never too late to check a mare in foal, until after the mare has foaled.
The mare is the mother and the foal is the baby. Until the foal is self-sufficient, the mother will be quite protective and caring.
A filly, until they are 4. Any baby horse is called a foal. A female foal is a Filly. A male foal is a Colt.
A mare that has a foal is called a broodmare.
Ewe is to lamb as mare is to foal.
After a mare has foaled you will want to wait until the foal is weaned before you ride the mare again. It is very hard to ride a mare with the foal trotting along side, and can be dangerous for the foal. A foal is ready to be weaned any time from 6 to 8 months of age.
A horses mother is called a Dam. But typically this is only used once the foal is on the ground. Until the foal is born the mare is usually just called a broodmare.
When you cover your mare on Howrse, the owner of the mare gets to keep the foal.
You can't. But you can not wake the mare until you have at least 200 EQ. If you don't click on your mare to care for it it won't age and the foal won't be born. -FrostyWizard
A mare will lactate as long as her foal is nursing. Most foals are weaned at 4-6 months. Some sooner, some later. In the wild it is not uncommon for a mare to nurse her foal until nearly the time her next foal is born, however long that is. It is also not completely unheard of to see a mare nursing a foal that is a few years old.
Mare
The length of time that a pony foal will nurse depends on the living situation of the pony mare. If the mare lives on a busy breeding farm the foal will likely only be able to nurse up until the fourth to sixth month of age as it will be manually weaned by a human. If the mare is allowed to keep the foal at her side without human interference in the weaning process the foal could nurse up until it is a year old before the mare would naturally wean it off her.