Normal or should I ask my doctor again?

I’m a ftm and I would really like to hear your experience. I’m currently 12w3d pregnant. I found out super early and my first ultrasound was when I was roughly 6 weeks. They told me because I was so early, I would have to come back 2 weeks later and I did. Since then I’ve only had one prenatal appointment, and I won’t be having another ultrasound until I’m exactly 20 weeks pregnant. Is it normal to go 12 weeks without seeing the baby? Is it safe?? I did have a miscarriage in December.