I didn't think to mention that at 7 weeks with my first it was a vaginal ultrasound (fair warning it's uncomfortable lol) but with this baby I found out at 9 weeks by a tummy ultrasound :)
I'm getting mine next week I'll be 10 weeks . They normally like to wait till your around 9 weeks so they can actually see unless they do a vaginal ultrasound .
I always got mine the day I'd go in to find out if I was pregnant. First baby was 7 weeks & second was 9 weeks. They usually want to wait until about the 7th or 8th week I think because they can see the baby better. It's too tiny when your super early.