MrsKA - Yah they do the blood test (called quad screen or triple screen depending which hormones they use) here in conjunction with the nuchal translucency scan. It looks at levels of hCG, Estriol, AFP and Inhibin A in the blood and calculates a ratio along with the NT scan. It estimates risk of Trisomy 21 (Down Syndrome), Trisomy 18 and 13...but can also pick up a few other things (most of which are obvious on ultrasound - abdominal wall problems and neural tube problems).
I think if you're willing to do an amnio for a high risk outcome and are considering other options if the baby is diagnosed with a trisomy then it could be worth it, I personally wasn't going to get an amnio (um, OUCH...and a tiny risk of miscarriage and it wouldn't change our actions in the pregnancy at all) so we just opted out.
It's a very personal decision and there are definitely reasons to go for it (lots of people worked very hard to devise the test - there IS a reason for it), we just had a friend who's ratio came back very high (baby was normal) and I didn't want to go through that stress.
CUTE bump!!!! It looks like a baby bump - wish mine would look like a bump and not just like I was getting chubbier!!
Yum - Sorry to hear that.
We'll be rooting you on as you work to lose weight and we're definitely counting down the days for you and Sal to get started again (wow that sounds weird - a bunch of strangers on the internet who can't wait for you to start having unprotected sex again...ha.)
AFM: I have an appointment today - interested to see how many weeks I'm measuring! No scan tho.
Our next one will be August 20th.