What would you do? Continue pregnancy or abort?

My wife and I just found out she is about 10-12 weeks pregnant, however the baby is not in her uterus it is in her abdominal cavity. Apparently the placenta is attached to vital organs. The Dr said there is no chance she could carry the baby full term, about 30% to carry long enough that the baby may survive with help from NICU, and 70% chance my wife could die trying to carry the baby. Her liver and kidney could fail. We have 4 other children between 1 and 12. She thinks abortion is wrong regardless(I always thought so too). I now think we should end this pregnancy before it ends my wifes life and takes my childrens mother from them. She thinks she got pregnant for a reason(she had a tubal after our last child was born) and every child has the right to be born. She won't even really talk to me about it any more. She also hasn't talked to any family members. What would you do? Any suggestions on how to get my wife to see my point or am I wrong and not considering her. HELP