Holly re. the 14 weeks - it's not a clear cutoff for me, but rather that the choice (cvs results vs amnio) means 12 - 14 weeks termination, versus 18 - 20 weeks termination, with nothing in between. For me, 18 - 20 weeks is just getting a bit late for me personally to feel is the right choice for me. Only because, I feel that if a baby can survive even for a little while after being born at 20 weeks, I would rather / may as well carry to term, and have the baby put on support and pain killers and get to spend some time with my baby, rather than delivering and the baby dying straight away.
Talia, your explanation makes perfect sense to me.

It must be so hard getting different opinions from different people, hard to work out what your own head is thinking.

First trimester screening (a blood test at 10.5 weeks and an ultrasound at 11.5 weeks) could give you more info on the pregnancy, and whether your bub is at higher risk of T13 based on physical markers. These results would be in before you would have your CVS.

So you could book in for the CVS, and use the results of the screening to help you decide whether to go ahead or not.

I have two conditions that my bub may inherit, but unfortunately (or fortunately?) genetic tests are not available. One of them may be able to picked up at 20 weeks, but the other is a waiting game. These conditions are not as serious as T13, but i have a slight inkling into some of the thoughts that might be going through your head.

I fought so hard to find a genetic test but was almost relieved when there wasn't one available, because i know how hard the decision to use the test would be.

take care,

Kate