Baby moving less

I’m going to 31 weeks on Sunday and I read that is normal for your baby to be moving less. But It’s making me a little nervous. I feel her move whenever I eat. I also feel like she is down lower to, I feel pressure on my pelvic area often lately. So idk if it’s bc she is in a different position. I was thinking going to call my ob tomorrow and see ask them what they think.. but I just wanted opinions from you ladies. I have felt her move several times today she’s moving right now. It’s just not as hard and frequently as I’m use to.