Hi OP, I am in the exact same position. I am 9 weeks. I have a genetic disorder called Incontinentia Pigmenti which is fatal to boys if passed on. A girl can survive. It's a 50/50 chance I will pass it on.
My advice is book in to see a GP as soon as you can. They will arrange for an early dating scan so that they can carry out the testing, if you decide to go ahead, within the right timeframe.
I went to see the genetic counsellors yesterday and they were great, but it's now changed our minds completely from what we wanted to do.
If we want CVS, they need to do it in the next fortnight but given the lateness of me being referred to them, they now only have two weeks to take my blood to test for the strain of the defect I have to know what to look for in baby. They said it's likely the bloods won't come back in time, so I'll miss the cut off for CVS. The next option is an amnio but I have to wait til 15 weeks for that.
However, what they explained yesterday was that they all come with a risk of miscarriage. They have performed the CVS tests, results on baby have come back perfectly healthy but mum has miscarried due to the test. On top of me already having a high risk of miscarriage, this just adds to it.
We had the gender blood test yesterday and if it comes back male, we'll make our final decision, but we almost agreed yesterday that we will not do a CVS because of the risk, and that if a miscarriage will happen, it should happen on its own.
I hope you're okay, OP. These past few weeks have been really tough mentally, so I know exactly how you must feel. Xx