I have measured myself to be approximately five weeks pregnant from my last menstrual period. I had a one sided pain yesterday so I visited OBGYN who scanned me and completed HCG. My results came back as 20,000 HCG and there was no embryo only a gestational sac, there was also free fluid and they could not rule out an ectopic pregnancy. I have been told I have numerous cysts and potentially PCOS but not to worry about that. I am going back for a recheck of bloods tomorrow and depending on HCG they may scan me again the day after. I am worried I have miscarried or have a blighted ovum. Any advice would be great. What do I want my hcg levels to do and why are they so high so early on if they cant see the baby?