The right temple is usually the most bald of the two. This is common.
It is because the underlying hair growth pattern is that of a spiral, around your crown, starting from the center and, if you lean your head back, continues in a clockwise pattern, finishing on your forehead... so the right side of the head (say, 2pm) is a bit further outside the spiral than your left temple, which is at 10pm.
It will get better, my right temple lagged a few months behind the progress on the left.