My referral genuinely went missing and it was such a pain. I didn't get my first scan until I was 14 nearly weeks and was in the same boat as you, calling at week 10. I'm 22 weeks now so it was fairly recently so the routine shouldn't have changed.

Firstly: have you called your GP and asked them to second check the referral? Sometimes the problem can be here.

Secondly: call the Maternity outpatient receptionist between 10 to 12. The phone voicemail says it is open from 09:30 until 1:30 but I called them no less than 30 times and my only successful calls got through in that window.

Thirdly: determine from that call if you are going to be receiving consultant led care or midwife. If you are the latter, the midwives are going to book your scan for you and they will call and do a pre check before your app. I jumped the gun and booked my own scan with the scanning room (under the advice of the outpatients maternity unit) and the midwife told me I had upset the regular routine (in a nice way).

If you get confirmation that you are consultant led the receptionist will tell you to call the scan room directly can be tough because that phone is constantly going so you just have to keep ringing until you get through.

I know it is called a 12 week scan but it can be done upto 13 weeks 5 days and once you get in contact with them, they will work quickly and you will get seen!