39 +4 appointment today

So I thought my water was leaking a few days ago, got checked they said it wasn't. I went to my appointment today telling them I was having the same issues for a few days now, so they checked again and I was told there is pooling of fluid but it's coming up negative for my water on the tests. But they are still slightly worried so I'm getting an ultrasound this afternoon to get on the baby and her fluids. Hopefully everything is okay, I'm slowly dilating so maybe I'll get to meet her soon.