casualdust07 - 2015-01-05 10:45 AM The most I will do with a pregnant mare is an easy bareback walk around the arena or field. And I rarely do that. It costs too much to get a mare in foal just to lose it down the road. And even if riding or competing was not the reason why they lost the pregnancy, it will always be in my mind- what if I stayed off her?- not to mention some stallion owners will VOID a live foal guarantee if you ride or compete on the mare while pregnant. Honestly, the best thing I did for my mare at the time was give her a year off and let her have a baby. It never hurts them to have a year of rest. She came back in the 1D her first run back.