My tummy is 'falling down'

With only 20 days away from the expected due date, i can see that the position of the tummy is lowering down. When i put my fingers at the abdomen, can feel the 'hollowness' there (about 4 fingers). And the pressure is more on the lower abdomen.

Baby movement is more frequent, sometimes a few kicks in each hour.. let me wonder whether the baby is awake all the times or she still kicks when sleeping? At this point, i can feel some 'movement' on the left side of my tummy..:)