As per NICE guidelines if a client is attending a scan pre 10 weeks gestation they will be advised that this will be conducted transvaginally and not to attend the clinic with a full bladder.
This video shows an example of findings considered to be normal anatomy of a live intrauterine pregnancy in the 1st Trimester.
Please make sure you have a copy of the Window to the Womb scanning protocols to hand and make notes where applicable.