Worried about my baby 😔

Tere
Someone help me explain or idk. Anything. My baby has been very active. Like Every time I sit or lay down, he would start kicking. I'm always on the move so I guess I rocked him to sleep. Two days ago, he was kicking just fine. I was watching my belly move since it was my day off. But then yesterday, he barely did. I went to work like normal, I clean homes, and when I got home, he wasn't moving around so much. I thought he would throughout the day, but I kept watch. I did everything to try and get him to move but nothing worked. I felt movement late in the evening and but it was so soft, I could've confused it as being gas. I have an appointment today with my doctor but I'm so scared. My SO and I got into a fight last night, early evening, and it probably has been our worst. I'm scared that might've hurt the baby. I'm so scared. I'm worried beyond words right now. Please help me.Â