hi clare, please dont take this the wrong way, but it must have been upsetting to have your first born with a few problems, but i bet you wouldnt change him for the world now!! i must admit i never have any blood tests or screening apart from the normal scans and nature will play me whatever card she holds and we will love the baby no matter what! my first two boys both have complex heart problems but it turned out to be genetic between me and my ex, felt guilty for years! but they are now both in really good health and have been for some time, the older one has the more severe probs and it stunted his growth a little but matt, the 16yr is a strapping, footy mad nutter!! LOL you wouldnt know apart from his scar, which im sure he will enjoy showing his girlfriends! hehe i DID have amnio with him but that was along time ago, not an experience i would ever repeat, so now i take what comes. all the best with the rest of your pregnancy xxxx