congrats to your sister-in-law! i am sorry they lost their first child.
there is not really anything special per se. well, i take that back...an exercise ball is something that was used early on to help build muscle tone for pj. but, most early interventionists provide that during the sessions. a boppy is a great tool for building the head and neck control. it may just the sort of thing where you wait and see what he may need. unless he is gravely ill at birth, he will be like any other child and require the same things. pj was a weak baby and some challenges, but i always thought him to be like anyone else's baby...cry, eat, sleep, pee & poop, not always in that order. lol!
alot of what DS babies need is interaction for learning. so maybe some books for mom and dad to help them learn or get ahead of the game on how to boost his learning potential. joining a local DS support group, even this early will only help them further. i would also buy something common that is given during baby showers, just to let the parents know that DS is not the only focus, but also the fact that a baby is being welcomed into the world. kwim?
it is so special that you are showing excitement and enthusiasm towards this pregnancy. you are right, a diagnosis of T21 is a relief compared to others. when we found out we were devastated, but as we researched and communicated our feelings to each other and those close to us, the excitement and anticipation for our 1st born baby grew exponentially. because my family, friends and myself viewed this pregnancy like any other pregnancy, it made for less stress and anxiety about having a child with special needs.
here are some great resources for the parents...
http://www.amazon.com/Early-Communicati ... 366&sr=8-1
http://www.amazon.com/Gross-Motor-Skill ... 366&sr=8-7
http://www.amazon.com/Babies-Down-Syndr ... 366&sr=8-3
sorry to go on and on, but in a way i like to reflect back on my own experiences with pj. it is hard to believe that he and (we) went through so much.
prayers and blessing to you and your SIL's family. if you have any other questions, please feel free to ask. i don't frequent this board often, but i am around sometimes.
