Skipping NT scan?

I (35F) am currently 11 weeks +1, and just had an ultrasound on Monday. My doctor wanted me to do the NIPT and NT scan. I did the NIPT on Monday and am waiting for the results. I called to schedule the NT scan for 2 weeks (i will be closer to 13 weeks) and the place i was referred to only has one spot available for the month and it's tomorrow. I just feel like that is too early and would prefer to wait until I'm a bit farther along so I don't get anxious about something unnecessarily. I also just can't do tomorrow.

If I get my NIPT results back and they are normal, is it ok to skip the NT scan or should I ask for a different location? Only having one appt available for the entire month is a bit frustrating.

Let me know your thoughts! Thank you!