Feeling like someone's cutting me 22 weeks pregnant please help!?

Last night I was all comfy on my left side with my pregnancy pillow all doubled up between my legs to alleviate my hips hurting etc....anyway, my hubby wanted me to move the other way so I moved onto my back, and this SEARING pain like someone was taking a knife from the inner part of my right thigh up to mid belly started and stayed for 3 min or so!! Do you know what this is?! It wasn't a normal growing pain I know what those are I have had 2 babies before. I was a bit worried but my baby is moving this morning so I don't think it had to do with him.??