I have a heifer that was accidently bred at 5 mo's, we had to pull the calf but no C-section like the vet predicted. Heifer was short on milk so we supplemented with replacer, she mothered it well though, and fed it what she had. Calf hasn't amounted to much but the heifer kept on growing good, not stunted. She is bred back and will be having her second calf soon, she'll be just over 2 yrs old when she has that second calf. She had better be able to feed this one.