These threads about asking people for seat changes have made me hesitant to do so in the following situation for ORD/LAX:

Wife (very pregnant) in 320 2D (award), me in 2A (upgraded). My wife is wondering whether to ask someone to switch an aisle for a window in row 2. I do not think I want to ask someone to do this. Is there any chance with asking the gate agent to switch someone? I would be fine sitting apart for the flight.