I am very grateful this afternoon.  I just got a call back from the genetic team at Children's Hospital...the results of our tests came back normal.  This means that the mutation that caused Callie to have Marfan syndrome was spontaneous and unlikely to occur again in future pregnancies.  This was obviously good news, for our future and for our own current health.  We will never understand why this occurred, but we know that Callie was meant to be our little girl.  God answered one more prayer for us today and I am so thankful for this good news. Looking forward to a weekend of healing by planting Callie's garden with good friends and family!  Pictures to come :-)