Hi there, I'm going through a similar thing - I'm onto my 4th pregnancy in 12 months and while my 14dpo numbers were really good (204) in 48 hours they've only gone to 331 - I'm on 3 prog pessaries a day because even on 2 it was low but that has gone from 40 to 87 in the 48 hours. Everything I read on the net says 48-72 hour doubling is totally normal (which mine has) yet the nurse at the fert clinic said it's not looking too promising. I don't know who/what to believe. How have things panned out for you? My last pregnancy I was measuring over a week behind for dates with low to start/rise HCG numbers but I was certain of my dates as I'm doing fertility treatment. Hoping everything is going well for you.