I always found that when I was active, I didn't notice my sons movements that much. However, when I would take a bath, he was always very active, especially later in the pregnancy. Also, and this is kinda weird, whenever I ate an orange, he would jump, and kick. I remember one kinda scary time, I was out walking to the store just down the street, and I tripped and fell, landed on my stomach, twisted my ankle, scraped my hands and elbows all up, turned back home, crying, to return to my husband......and we were waiting to see if he would move, but he was still. So, my hubby got me an orange, and said 'try this'. It worked, but we did go to the emergency anyway, just to make sure all was ok. It was. And I remember when going to bed, this goofy baby would stay still, until I layed down to go to sleep, I would try to sleep on my side, and he would kick and move, and kick really hard, if I was laying next to my hubby, where my bump could touch his back, he would feel the baby kick him!!!! It was only when I turned on my back, that he would settle. So, for most of my pregnancy, I had to sleep on my back, cuz the stubborn little guy would NOT let me sleep any other way!!