Yip I think its normal. Its from the diaphragm being pushed up by the baby. But do consult your doctor just to b sure.
Do you have preeclampsia? If it is really bad and just under your rib cage you need to go to the doc
The dr will do tests to see if you have preeclampsia. I had it my first pregnancy (twins) and it wasn't caught until I was in the er with an emergency csection. Usually with that though, you'll have dizzying symptoms and blurred vision as well. Unfortunately, pain under your ribs is extremely normal. Try a warm bath and switching positions laying down with a pillow under your belly.
Ive tridd every thing and i cant sit still without my ribs and back hurting