Is it dangerous that my rib cage goes into my hips?

Okay so I recently discovered that my rib cage now goes down into my hips. I say now, because I’m still a teenager, and when I was younger and still growing, this wasn’t the case. Back then, ther was a small gap between the bottom of my rib cage and the top of my pelvis, but since then, for whatever reason, my rib cage has either shifted or my pelvis has gotten taller (is that a thing that happens?) or SOMETHING. Basically, my rib cage starts off normal, but if I follow the edge of the rib cage, it goes down and at my sides, it not only reaches the top of my pelvis (the part of the pelvis that comes up closer to your rib cage) but my rib cage also kinda slopes inward and the last couple ribs are in my pelvis. This doesn’t cause any pain or discomfort, and doesn’t seem to be doing harm, but is there anything to potentially be worried about with this? I don’t want to go to the doctor or anything if it’s not necessary but I don’t want it to be causing problems that I don’t know about