I'm sure you were relieved to hear that! LOL! Instead of being told they were super long contractions. I get the same feeling when baby pushes her butt out (it almost hurts!) so I understand why you posed the question.
thanks dear - it was actually baby - went to the doc yesterday
It is most likely baby's head or butt. A contraction wouldn't last that long. You can try pushing on the hard spots and if it softens up or you feel baby move- then it is most likely baby.
Otherwise, when in doubt, call your doctor!
I do have contractions every now and again. It feels like premenstrual cramps and my belly does tighten up. But it only lasts a few seconds.