I'm in limbo, my early ultrasound didn't look good but my lab levels were spot on. I'm scheduled to go in again tomorrow for another ultrasound and more labs. I can't find anything definitive though about when HCG stops doubling at 48 hours. I'll be at 96 hours so should I be hoping for quadruple? I was at 24,000 on Friday morning so it will be almost exactly 96 hours. It seems like most people aren't having betas this late though so it's hard to find info.