Best thing to do would be check with the League and refs.

From my understanding it iss...

Jump stop to catch the ball, if you land on both feet at the SAME time, choose either as a pivot and that's your pivot foot.

Jump stop to catch a ball, but if one lands after another, the one that lands first is the pivot.

Jump stop after the dribble (take 1 step), no pivot foot.

They rarely call it, but manyplayers lift their pivot foot before they dribble the ball.