In late summer or early fall, the male gathers a harem of about 3 to 4 does. Horns are shed a month after breeding. Pronghorns have been known to breed as fawns but they usually breed for the first time when they are 16 to17 months.The does usually produce twin fawns in early june after a gestation period of about 250 days.
The young are born in May or June weighing anywhere from 4 to 12 pounds according to various sources. Within a day or two the 16- inch-tall fawns lie quietly in tall grass while the mother grazes.
