I need help!

So I am 28 weeks pregnant with baby #3. I have been having severe pain that is only getting worse right on top of my right ribs underneath my breast. There is also a little swelling/knot there that is tender and pain shoots through to my back when I touch it. I also had this towards the end with baby #2 and all tests with my liver and gallbladder came back fine. I bring it up to my dr at every single appt and he has brushed it off as costochondritis or the baby kicking my liver. It is getting to where it is unbearable and idk what it is or what to do. My bp has been fine the entire pregnancy so I don’t think it is related to pre-eclampsia. Has anyone else ever experienced this? Idk how I can handle this for another 12 weeks😭