So I took a pregnancy test 4 weeks ago I came to the doctor last week and she calculated it from my last period I was 9 weeks she said she gave me a referral for a ultrasound and blood test so I came to do it today she put the machine on my stomach but the sack showed and nothing inside then she done a internal ultrasound and a small baby showed inside the sack it was measuring 5 weeks 4 days and the sack 6 weeks 5 days she looked concerned and told me to go see my gp their was no heartbeat for the baby due to it measuring so small she said. I am not sure what's going on has this happened to anyone before? I haven't bled or anything and I feel fine is this normal?