I've just had a viability scan at 6+5 at my IVF clinic. They found a sac, yolk l, fetal poleand embryo but measuring 6+1 and no heartbeat. Dr also said the sac was 2cm too big which isn't a good sign. I have to go back in 2 weeks. In my last pregnancy which ended in MMC the embryo was measuring ahead and had a heartbeat by now. Probably a silly question but is there any hope of baby catching up? Has anyone experienced the same thing?