Back pain

Im having really bad back pain. Its like my tail bone or where my middle of my pelvis meets my spine. Im not sure how to explain it but it like a pain when i walk and bend. It just started 2 hours ago when i was at work. Its causing me to walk strange. Im only 9 weeks pregnant ill be 10 weeks Sunday. Is this even normal to be going through this already?

No I haven’t had any sonograms yet im not even sure if im having just one baby lol