5 week vaginal confirmation scan

Emmalee

I just set an appointment with my OB for next week, which if my home test are correct, I'll be at 5 weeks. They said I needed to confirm the pregnancy which would be a vaginal ultrasound. Is 5 weeks too early... should I wait until 6 or 7? I know it can be $$ and dont want to be disappointed if I go early and then feel like I have to wait forever for the next scan. Thoughts and recommendations appreciated!!!