Blighted ovum

Well, I'm 9 weeks pregnant and just had a ultrasound due to a previous miscarriage. Things didn't go so well today. It turns out I'm pregnant, however there is no baby. My docs say that I could have miscarried and the body didn't realize it and has grown a sac like it normally does when pregnant, there just isn't any baby in it. My doctors say that they're going to wait a week for me to miscarry on my own and then do another ultrasound if I haven't in a weeks time to double check to see if there is a baby or not. Then if my body doesn't miscarry in on its own I'll have to go through a D&C... I'm not sure how to handle all this. Being pregnant, just without a baby... Hard day today, hard day.