Multiple ultrasound question

Megan

Ok, this is my first time being pregnant. So I had my first vaginal ultrasound yesterday at 8 weeks. Heart beat was 174, she said everything was good. I am switching doctors due to connivence for me and my husband. So what concerns me is, can I have another vaginal ultrasound less than a week apart? Because this new doctors appointment is scheduled for the 20th of this month.