I had a CVS with both pregnancies. The first was done at about 13 weeks, the second at 11 or so. I found out the results the first time in about two weeks, and the second time only three days. We were continuing the pregnancy regardless of the results, but my husband and I both wanted to know what to expect. Our older daughter does not have CF, so we were able to enjoy the rest of my pregnancy without worrying. Our younger daughter does have CF, so we used the remainder of the pregnancy to learn everything we could about the disease. We found a clinic, a doctor, and used the time to mentally prepare ourselves and our families.
As far as the testing, the rate of miscarriage (these stats are a year old) is generally about .5% for amnios and 1% for CVS. However, and a BIG HOWEVER, these rates vary widely by doctor. We researched doctors who had performed the tests and found one who had a CVS miscarriage rate of less than .5%. From what I understand, the more they perform, and the more regularly they perform these procedures, the better they get at them.
If you have any other questions, let me know and I would be happy to answer them for you.
Best wishes,
-- Jenica
Mom to Abby (2, w/o CF) and Ellie (8 months, w/CF)