trisomy 18.

So I got news at my anatomy scan that my daughter has an omphalocele , two instead of three arteries in her umbilical cord, and her hands aren't developed past her wrists on both arms.. they did an amino but the results won't be back for two weeks. They said there's a probability of trisomy 13,18, or 21.. her brain is perfectly normal and they did a heart echo and it was strong and Normal as well.! Does anyone have any experience with these markers or any words of advice .?): my husband and I are so scared and hurt right now ..