No, although there are many definitions of juggling, the one
that i think is the best is throwing and catching more balls than
you have hands.
For example you have two balls and two hands, so it is not
juggling. using 3 would be juggling as you have more object than
hands.
Although you may mean juggling two balls in one hand. in which
case that is juggling as you are using one hand and tow balls