I am 6wks 3days pregnant with my 5th pregnancy & i have a very strange twitching feeling down low in my uterus/pelvis when i sit or lay down. I dont notice it when i'm standing up or walking around. It has been constant for the last 2 days. Does anyone know what it is or has anyone else had the same thing?? I know its probably nothing to worry about & definitely not bubs moving but it just strange & i've never experienced it before.