With this being my 4th pregnancy you would think id know what a contraction feels like.. But I have never had one and have no clue what they feel like or how they should feel. I woke up this morning and my uterus cramped up into a ball.. I could feel it, it was rock hard.. Its been somewhat hard all day.. I keep getting these weird waves of tightening across the top of my stomach.. My whole stomach just feels tender and sore. And just within the last 30 minutes have been having a little back pain with it.. I think im going to call the hospital and see what they think..