I’m 11 weeks and still haven’t seen a midwife is this normal? UK 🇬🇧

So I’m 11 weeks today and I recieved a letter about 2 weeks ago from my local midwives saying the midwife allocated to me is on holiday and will ring me when she’s back but it also states on the letter that if I’m 11 weeks I need to ring asap but they aren’t answering the phone.

This is my first pregnancy and I’m starting to worry. I went for a private early scan as I was so nervous and she said everything seemed normal but aren’t there blood tests/other tests I need done before I’m 12 weeks?

This is so frustrating, any advice would be greatly appreciated. Thank you!!!