Sharp back pain

Stephanie • My names Stephanie, I`m 25, a wife and mom to two kids, and expecting #3!
I'm 22 weeks and ever since I was in the car for three/four hours today I've had a bad pain in the left side of my back. It's not horrible, I can still function but it's just very uncomfortable. Has anybody experienced this? I googled it but of course Google led me to panic 😳