Ligament type pain?

Leah • Married and mother of two baby boys 💕 2/19/14 @ 37 weeks • 5/3/16 @ 34 weeks
Hey all, I was wondering if anyone has experienced this. I'm 5w1d and I have a shooting pain that starts at my lower back or crotch and goes down my leg to my knee or calf. I've been sitting down for a while so that might be part of it. I don't know. Help?