Fell at 19 weeks

So I’m 19 weeks pregnant and I was working on my classroom today and my chair slipped out from under me. I fell on my butt and hit my back on my cabinet. I’m not bleeding and don’t have any cramping. Has anyone had something like this happen and be fine? I lost my first baby last year at 15 weeks so I’m pretty terrified.

Update:

Baby girl is perfectly fine! My doctor wasn’t concerned at all. Had her dopplered to be sure and she was moving around with a strong heartbeat