Julie Cohen 
Dear Thing 

After years of watching her best friends Ben and Claire try for a baby, Romily offered to give them the one thing they most wanted.
But Romily wasn»t prepared for the overwhelming feelings that have taken hold of her and which threaten to ruin her friendship with Ben and Claire – and even destroy their marriage.
Now there are three friends, two mothers and only one baby, and an impossible decision to make . . .