On December 18, 2013, my OB told me that she was 100% sure that I had a blighted ovum. I was about 5 weeks pregnant based on my HCG levels (my period is really irregular). At week 3, my HCG levels were 660, week 4: 17,000, and week 5:68,000. So, they did not double every 48 hours between weeks 4 and 5. My husband and I had been trying to conceive for a few months and we were crushed. She told me that I needed to have a d & c on December 20th because I might end up with a significant amount of blood loss and in the ER if I did not have the procedure done. I asked her to wait one more week and check things again, but she said that was unnecessary and that since the next week was Christmas, she would rather do the d&c two days later (the 20th). I read some stories on this website and others and had a tiny bit of hope that maybe it was just too early to see anything. Also, my uterus sits on the left and I had only had a vaginal ultrasound, which may not have been able to see much. I told my OB that I was going to let the miscarriage happen naturally. Almost 3 weeks later (January 6, 2014), I got to hear my baby's heart beat and see a perfectly healthy baby with a strong heart beat and measuring at 8 weeks 5 days! Listen to your body! I am so very thankful that I listened to my gut and my already motherly instinct. At my appointment, my OB told me that she was still so sure that it wasn't a viable pregnancy that she had a spot reserved in the OR for me this week and that the Lord was looking out for us. Our prayers were definitely answered! I would encourage women to wait if they can, so they will never have to wonder. From what I have read/heard, our bodies are made to be able to miscarry normally before 8 weeks.
(sorry if I posted this in the wrong spot, but it won't let me start a new topic)