They had an ultrasound this week and everything looks really good with the baby, yeah.
The medicine seems to be working so my sister-in law is doing well, and we found out that the procedure to fix the heart damage isn't quite as scary as it sounds, and is almost routine these days (according to an ex ER nurse my brother talked to) so that all is another Yay.
The final bit of good news is that the company my brother works for is trying to get his and 3 other employees contracts extended, and if that doesn't work they are talking about moving him to their IT department, so that is another tentative sigh of relief.
Thanks you so much for all your thoughts and prayers, I'll keep you updated.