Had my 3rd transvaginal us today and we were able to see the sac I am 5 wks 1 day but sac measured 5 wks 2 days. Dr said everything looked great. My HCG level was 9000 and that was great news. The only weird thing was that I have "free fluid" in my uterus. Its away from the baby but it kinda scares me. Dr said not to worry and it might just go away. Next us is in 10 days and hopefully that one will show baby and not just the sac.....and no more free fluid. Has this happened to anyone else?