I have a angus heifer about 2 1/2 years old, first time calver. She is due just any day now. Just within the last couple of days, she has what looks like an umbilical hernia, I felt it, it is like a water balloon on her tummy right in front of her udder. Not real big, about the size of my hand, and just feels like a water balloon, but noticeable. Is this something that we should maybe be thinking twice about whether to breed her again? I never noticed anything on her at all when she was younger, and she is otherwise very healthy.