We have five cows. We bought them last October 17,2007. They were kept in a leased pasture and were with a bull when bought. Four of the cows have calved to date. Jan 20, Mar 6, Mar 14, and May 3. The fifth cow is plenty big but has not started to bag up. If the fifth cow was bread the day we bought her [Oct 17 ] then she should calve by July 27 or she is still open ? I would like all cows to calve about the same time. My question is, If I wait till after the last cow calves, even if it is July 27. Would putting the bull with the cows at that time possibly cause harm to the new mother cow, by allowing her the possibility of being bread to soon after calving. It might sound like a stupid question but I am in charge of these cows and they will be cared for properly. Thank you, Tom :cboy: