Lower back and left thigh pain

Hi mamas, I am a first time mum. I'm at the 9th week of my pregnancy. I've been getting bouts of sharp pain in my lower back and left thigh. This happens when I'm lying down and I try to turn. Sometimes the pain is so sharp and intense I'm unable to turn to rest on my side. Is this normal or should I seek medical attention for this? Has any of you experienced this before? Would appreciate any advice!!