I am 30 weeks measuring at 33+ weeks in the 99th percentile for his size, weight and head. He is active CONSTANTLY which means he is healthy so I'm not trying to complain, but he recently started moving head down and my lower back is killing me. I was already hurting all the time from pressure in my stomach but this really is uncomfortable and I don't want to get used to having to lay down all the time unless it is the best way to deal with the back pain. FTM.