other than contractions, signs of labor?

My dr has constantly dismissed my concerns that i wont know when labor strikes. my due date is tomorrow (4th of july) and i havent felt a thing the entire time ive been pregnant. I can see the baby move, but i cant really ever feel it, Ive never gotten period cramps, and the dr stripped my membranes thursday and i didnt feel any pain, just pressure. and she warned me that would be painful. my mother and grandmother never got contractions when they were in labor, and both of them say that im taking after them.

well, with all that being said, my dr tells me there is NO WAY that i wont have contractions, and theres no way that my family hasnt felt them either, so i am upset that my concerns are being dismissed. i know that waiting until my water breaks could mean i only have a short amount of time until i need to start pushing, but the dr wont even entertain my concerns.

anybody else experience this? what would be other signs that i might feel or notice?

the only thing that i have been feeling since she stripped my membranes is a soreness in my lower abdomen so when i roll over in bed, or get up from sitting it hurts to move for a few seconds. its intense but it goes away. and doesnt recur until ive been sitting or laying for a while, and then move again.