Doctor got it wrong!!

I lived in Germany up until 2 weeks ago and about a week before we moved I found out I was pregnant when a nurse done a test. Couple days later I started getting pink discharge. I was referred to the hospital where they scanned me and told me I had a empty sac and baby had died. I had to go back 3/4 days later for another scan to check, still empty sac and it was a mmc. This was the 17th May.  Told me to go straight to doctors back in the UK where I'm moving too. Got to the doctors on the 26th May after registering with new doctor. He got me straight in for a scan, as I was told by German doctors I will probably need a d&c. Went in to expect them to arrange a op, but instead I was told I am still pregnant and I am 7w5 days now, with a good heart beat. I still can not believe it!! I left Germany heart broken, to move into our new house to find out I'm still actually having my baby.