ok so i have 3 dogs, toy poodle(3 yrs), wire hair doxie(3 yrs), and a yorkie(2yrs). for the last 3 months the doxie and yorkie have been getting in terrible fights, like ferocious trying to rip each other apart fights. ive had them all since they were puppies and this just started recently and its been getting worse, almost on a daily basis now. not only am i concerned for their safety (my yorkie weighs 3.5lbs) but im also expecting this july and im scared if this continues i wont be able to let them around the baby. not for fear that they will bite the baby but for fear that theyll start fighting around her and shell be an innocent by stander, which ive already been caught in the cross fire. the poodle is an angel, no problems there, i just dont know whats gotton into the other two??? do you think they sense somethings differnt since im pregnant? i cant think of anything else thats changed in their enviroment. they can be across the room from each other and all the sudden they start mean mugging each other and next thing you know they are at each others throats, its never about food or toys...... im lost and i dont know what to do.

please help.