I had exactly the same last week ( horrible lady in a scan place In widnes) , I'm 5 weeks pregnant and she was trying to tell me I wasn't pregnant at all , she wouldn't do transvaginal one but was pushing really hard in scan , so hard I started bleeding next day, went to a different scan place in wrrington who did transvagimal straight away, seen a sac with yolk sac and measured 5 weeks pregnant , she said its pointless doing a normal scan at this stage , to early . Im sure you will be fine , just hope to see my little babynext time im there , even tho I paid for the first scan place in Widnes I won't be returning there