Ok , my heifer with 3 month old calf must be trying to come back in heat. My bull today tore down the fence in a section to get in to her and the calf. He was successful in getting in and I don't know if she is in heat. How long before she can come back and what if he was successful in his move. I did not see what happen and have now fix fence. This Little 12 foot piece had no Barb wire on top of it. It has stood for 4 years until today. They are separated now but is ok to breed her back now?