I only just saw this thread. The same thing happened to me - I was supposed to be 7+3 at first scan but measured 4mm and they put me at 6 weeks. I knew that couldn’t be right but was fobbed off saying I must have my dates wrong.
Started bleeding at 9+3 andhad a scan - they had to go internal (I also have retroverted uterus) and it hadn’t grown. Diagnosed MMC.
That was end August and my first pregnancy aged 38, almost 39.
The reason I’m posting, however, is to give you hope. That experience was awful and I can’t sugar coat it - it’s shit and you will obviously be devastated. However, chances are you’ll go on to have a healthy pregnancy. Doesn’t make this any less shit but the feeling won’t last forever.
I found out I was pregnant again on 11 Jan, having turned 39 in September. We had a scan today (at 10+2) and baby wriggling away. It is measuring slightly ahead. I’ve been awfully anxious throughout and never thought we’d ever get this far but we have.
Chances are will be the same for you. You’ll get through this. Allow yourself to grieve, take the time you need and try again. Lots of love xxx