As for people not knowing until VERY late in pregnancy, how would you not feel a baby moving inside you?? I can't comprehend that, because I always felt like they were trying to claw their way out of me by the time I was about 26 weeks or so!!
With Ianto, I easily could have gone quite a while not knowing he was there (*shudder* Imagine if I hadn't and what happened still happened...). He was a very slow-moving bub, never kicked me that hard, and I would probably have shrugged the kicks off as gas or something like that.