Welcome caravela, what a great story! Congratulations on the pregnancy, and I think we all know what it is like to not believe it is happening. After years of trying it just feels so strange to be back in the land of 'normal' people. :)
And also welcome Beetlebeetle. So sorry to hear about your twins. From my research the TAC is really successful so certainly something to think about.
Today I had a 10 week scan as part of the Harmony test, and everything looks good! Baby is 32mm, 165bps heartbeat, and I could see the head, arms and legs. All very smudgy but clearly there. It's simply astonishing to know there is a baby in there! They even gave me a 3d scan, which just looks strange, but I love it. I can actually find out the sex in 2 weeks as this is a blood test, so we will have to decide if we want to know.
The doctor did a cervical length check and it showed at 2cm, which is good in one way (I was told it would be between 0.5 and 1cm), but bad as it should be about 5cm. So the Cerclage is definitely the right option. Feeling very lucky to have the choice, to know about it, and to happen to be in the right borough to have two of the UK specialists working in local hospitals.
Today is a good day. Feeling pretty rubbish nausea-wise, and still too tired to move, but super happy!