Thanks everyone for your best wishes for my sister. They got the results of last week’s amniocentesis this morning and all was clear. Their specialist said that was positive but there’s still a way to go yet. Their little boy (they decided to find out) definitely doesn’t have any of the chromosomal problems but they still don’t know what’s causing the fluid build up. The next scan will be in another 2 weeks and hopefully the levels of the fluid will have gone down.