Missed mc?

Hi girls,
I'm posting this in general as well as my monthly pregnancy just to get advice. 
I've had spotting recently so was sent for a scan to be told I'm only 4/5wks although my LMP was 6th April putting me at 9 weeks today.
The sonographer was experienced but I'm now convinced that I've had a mmc especially when I did a pg test on 5th May which was + 
Plus me & DH didn't have sex until 29th Nag due to him working away and being ill.
Any advice please? Have to go back in 2 wks for another scan to see but I'm 95% that it's stopped growing. 😔