I can't stop worrying

Meghan

I cant help but to keep thinking something is wrong. I am 18 weeks 4 days with baby number 3. I am not feeling movement. I have times when I think I feel things on the sides but I'm not sure. I have had normal prenatal visits and my anatomy ultrasound is Monday. I just can't shake the idea that something isn't right. I am a ball of nerves! Anyone else have this?