Based on my lmp, I should be 6w 2d however I went for an u/s today and there was the yolk sac but no fetal pole. The radiologist said I'm measuring at only 5 weeks. I have to go back in one week for another u/s. I'm worried that I'm really six weeks but that the yolk sac is as far along as it's going to be. Would I still be having pregnancy symptoms if that were the case? Has anyone else gone through something similar with a positive outcome?