Advice Needed

I'm a first time mom here and I'm 35 weeks, but baby is measuring at 37 and I'm 1 cm dilated. I woke up this morning (well I never actually slept) with a lot of leg and back pain and my hips were hurting very bad last night. Baby was head down at my scan a couple days ago but it feels like I have a hard bowling ball at the top of my stomach and it's sensitive to the touch. Any idea what could be going on or how to relieve it?