I'm so glad you're feeling that reassurance from your baby! Let me tell you something..... When I was almost due with my fourth-born, I got a brand new exercise ball to sit and rock on to help baby get into the right position. I found out the hard way when I was getting a little overzealous with my bouncing that I did NOT choose one that said anti-burst. I fell so hard that the baby pushed down hard on my bladder, and I peed myself and bruised my bottom. I can laugh about this now because it really is very funny, but at the time, I was terrified. Everything hurt. It was a hard fall on the tush. We called the doctor right away who was very empathetic but said that it'd be all right and that as long as there's no bleeding, it's safe to say there's no problem. I still worried all day and night and used my doppler every night to make sure my baby was still alive. He just turned 1 last month, and he couldn't be more perfect!
When I was 17 weeks along with my second-born, I fell out of the shower onto my tummy, and he is an awesome little 3-year-old now, and the pregnancy went perfectly!
So there are my two big falling scares for ya.
Both turned out just fine. I'm really, really glad that your baby is moving around for you now. If there's one thing I've learned with being pregnant so many times, it's that our babies sense if we're really scared or tense, and they will go quiet as a result of it. That just scares us more, but all of my babies have done it when I've had a scare.