Advice???

So I’m at the end of my 5th week going into my 6th with my nugget! But I’m feeling pain kinda in my diaphragm area, in the center not under my rib cage but right underneath where my rib cage is. I have no bleeding, I don’t have nausea or vomiting, I have low back pain but that’s from the new mattress hubby and I just got! But not sure if anyone else has felt this pain before it isn’t unbearable it kinda feels like a bruise. And it can really only feel it when I’m sitting down. Ideas?? I go for an ultrasound Monday morning.