Hi hun, last pregnancy I had a risk of 1 in 10 for trisomy 18. I had CVS done at 11 weeks and 6 days: turned out to be a normal girl. It was like an uncomfortable pap test and I had a bit of cramping for a couple of hours, no spotting. I will be doing it again this time around, decided I need to know with 100% certainty and will skip all the screening tests to go straight to CVS (apt already booked for October 17th). What I liked with CVS is that we waited until we knew everything was OK before disclosing the pregnancy. With amnio, is it done later, so people know you're pregnant. There is a slightly increased risk of miscarriage with CVS, but for us the benefits were clear.
hun, not an easy decision, I hope everything turns out perfectly well!