Hello, moms. Who is what, and pregnant women about movements. I though…

Hello, moms. Who is what, and pregnant women about movements. I thought that this pregnancy would be less reasons for worry, because it's not the first time all, but comparing with the previous pregnancy, I am worried. The doctor is silent, says everything is ok, should be alarmed by active movements. And my little one sleeps constantly and moves very gently. I remember how my first son was hitting: clearly, often enough and hard, on the last months even ribs creaking. And this initially pushes softly, sleeps a lot, especially when it rains. On all ultrasound he slept. Now already 31 week, he moves every time I lie down on my back to check how he is there, but these are rolling over