NIPT - advice please

[Gurraun]

Hi
I am 39 and 6 weeks pregnant with dc3. Without wanting to count my chickens (I had an early loss in the Summer so know things don't always go smoothly), I have started to research NIPT which I definitely want given my age. My head is completely spangled so wondered if anyone could shed any light?

Is any one test (Harmony, Panorama, Iona) better than the other or is that they each have slightly better/worse results for varying factors?

If there is no definitive 'best' test' which would you go for? The Harmony and Iona are done locally to me so would prefer not to have the Panorama unless compelling reasons to do so? I am aware the Iona results are obtained in the UK so quicker turnaround but guess the others results are worth waiting for if they are much better..?

When is the best time to have the test done? I believe they can be done from around 10 weeks but is there any advantage/disadvantage to this ie better to wait until 12 weeks for any reason?

Many thanks for your thoughts

Both times I went for a test, I asked for Harmony and the place (two different clinics) told me they don't recommend it as it has a higher redraw rate. I had the SAFE test, which I think is the same as the Iona test? Turnaround was exactly one week, got very reassuring results (less than 1 in 1,000,000 risk for all the trisomies), was very glad I did it.

I had the Iona test (twins) at 13 weeks after NHS combined screening gave 1:14 high risk result for trisomies. My Iona results came after 7 days and we got very low risk, less than 1:1,000,000. A later amniocentesis (for other reasons) at 29 weeks confirmed all clear. I have since and will continue to recommend Iona to anyone who asks.

Thank you