I wasn't worried, or even thinking, about abnormalities as I knew if I had OC and it wasn't discovered in time my baby could die. I just wanted my baby alive.
It has always bothered me that we don't know why he was reacting the way he was and I worry he will collapse on the sports field with an undiagnosed heart problem as I have heard other children have. No idea of course if their mothers had polyhydromnious.
DC2 - I had scans weekly at the end.
DC3 - a couple of extra scans for other reasons.
Funnily enough, DC2 and 3 were born vaginally and they both have physical difficulties but that is pure coincidence I think and they get them from DH and I as opposed to a random problem.
With DC3 we knew there was a problem, and I had already lost his twin, so as soon as he was born I did ask if he was X though really the problem was Y but I figured the student midwife who delivered him probably wouldn't know what Y was and if I said X they would look carefully at him.
Try really hard not to stress yourself out. It won't change anything at all and it is using up precious energy when this is a special time when it is just you and baby together. Once they are born they belong to the world
.