My 3 month old son now cries when my daughter and mom holds him. He sees my daughter everyday so I find it strange that he really throws a fit when she picks him up.....and my mom has been helping out since the day he was born. He does pretty good with my husband now since he’s been off work with a broke finger, but his attachment to me is really strong. Is there something I can do to get him more comfortable with others? I need a break sometimes but I hate to see him stressed out and crying.