Vomiting and intense back pain

Carlene • First Time Mommy of a Baby Girl 💞 May 19.

I’m 37w+4 - 3cm & 90% effaced since 36w. I’m experiencing very intense back pain (literally feels like I’m getting stabbed in the back), sharp pelvic pain with every movement & i think the pain is causing me to vomit. I’ve vomited twice (tmi). Is this something i should be concerned with? Should i call doctor or is it normal being this far along?