@CharlieBalf sorry to hear you are going through this. I was flagged at my 12 week as high risk for genetic issues, specifically Down syndrome.
My partner and I opted for the NIPT as a first call, as after discussion on options my hospital won’t perform an Amnio before 16 weeks. We decided we didn’t want to wait that long (as 3 weeks to me felt like a long time with no more answers) and we were told we could effectively have NIPT and if that flagged continue onto the Amnio a week or so after the NIPT results came back which they say are 5-10 Working days. If you really push I think they will give you both regardless.
For us our NIPT came back low risk late last week, and as the scan showed no anomalies according to the sonographers (it looks like it was my blood factors). So we decided not to proceed with the amnio and roll the dice as we felt the NIPT effectively moved us back into normal pregnancy category with the same risks.
As my hospital gives your risk profile at the same time as your 12 week scan (joys of lab onsite), the experience was somewhat ruined! So I’m waiting to have a scan at 16 weeks which is in a week or so to check in again and if that sonographer raises any concern I will be straight on the hospital phone!
I had all the scenarios running through my head, and googled terribly (bad idea!). What I will say is though, a lot of people have really high odds in discussion forums due to the NT result (saw someone with 1/6) they had the Amnio and Baby was 100% perfect! Also worth knowing not all hospitals have the same outcomes for miscarriage after, you may find your hospital has better odds if you decide to go with the Amnio.
I hope you get the answers you need quickly, it’s really awful. It didn’t help that my phone registered all my googling and started spamming me on instagram with accounts of people who kept their babies, which was not the decision we would have taken due to a number of factors.
So a piece of advice from me - if googling use incognito mode! I’ve still got the thought niggling in my mind but trying to put it aside and hoping for the best at my 20 week. I’m trying to still enjoy and celebrate the fact I am pregnant, and forcing myself to tell people now because even if it does go wrong, I’m going to need my friends support