Four days until I find out if my pregnancy is viable... Terrified!

Danielle
In four days (Friday at 10am) I go for my second ultrasound to tell me if my pregnancy is viable. I went almost two weeks ago and was measuring behind, sac only - no baby. I felt the world move beneath me when I was shown that screen. I was told there were three ways it could go, one) I miscarry naturally in the time between scans, two) it is a blighted ovum/missed miscarriage which may have to medically managed or three) everything is fine and my dates were off or ovulated late. I an absolutely petrified about going back and finding out. Any wise words, prayers, positive thoughts, advice or stories anyone wants to share would be greatly appreciated. Thank you ladies even for taking the time x