one sided back pain I the first trimester

Nichole • 26 | Newlywed💍❤ mom to my sweet girl, Owynn 10/2017💕👶🏻 TTC baby#2, VFL on 2/2. EST Due date 11/16/19
I'm 9w5d today and until today I've only had mild lower back pain here and there. All day today I've had sudden sharp pains in the middle of the left side of my back that last a few seconds and go away & it doesn't seem to matter if I'm on my feet or sitting down when it happens. I don't remember really doing anything that would've injured my back. Not sure what this kind of back pain would be steming from. Ideas? Anybody else have one sided back pain like this?