1st trimester screening

In a few days I have an appointment with a perinatologist for first trimester screening. This is something that my new RE suggested that I did not have done in my last pregnancy. He said he recommends that his patients get first trimester screening as a way to obtain more information on the pregnancy.. although I'm not sure if he meant he recommends this to ALL of his patients- or just those who've had previous problems with pregnancy.

The perinatologist that he referred us to is actually the same doctor who performed my 20 week ultrasound last year (standard procedure at my obgyn). Apparently the appointment should last about 2 hours and will include blood tests and genetic counseling. A big part of the appointment will be gathering information to decide if we should do further testing (CVS or amnio). For a couple of reasons I suspect they may suggest doing testing: 1) I am now 35 :( and 2) because of my second trimester loss. As the appointment gets closer I am starting to get nervous. The main things that I am afraid of happening are:

- discovering that I am a carrier of some genetic abnormality that might affect all of my pregnancies
- that there is something wrong with the baby
- having to decide about CVS and amnio (both of which are invasive and in an ideal world I would prefer not to do either)

I am also feeling ambivalent about the appointment in general. On the one hand, I want to have as much information as possible about the pregnancy. On the other hand, any reassurance just feels like false hope. One year ago the same doctor performed a 20 week ultrasound/screening on my son and everything looked perfect. One week later he was dead- for unknown reasons.

I would love to hear from someone who has been through first trimester screening or testing. Has anyone reading this done CVS or amnio?