http://en.wikipedia.org/wiki/Limbo
Limbo is a place where the unbaptised infants still in "original
sin" go to, a place neither here nor there... sadly, there may not
be anything we can do for them, which is why the church opposes
abortion 
However, nothing is said on the fate of unborn children who die in
original sin
For your friend, she might wanna try the Rosary, the Prayer of St
Jude (patron of lost causes) and St Gerard Majella (patron of
children, childbirth, motherhood etc etc...)