Sharp lower back pain?

I’m 11 weeks pregnant with my first and I have really sharp back pain near where my butt is. It only hurts significantly if I turn or move a certain way. I’ve already gotten my first ultrasound and checkup and everything was fine! I was just wondering, is it normal to have really bad lower back pain like this? I don’t have any symptoms or signs of a miscarriage, so I don’t even think that’s the reason why my back hurts. The pain has just been getting worse though. Is this normal? Will it go away?