Call Me Daddy by Y M Miller

All he ever wanted was a son. The perfect family. 
The perfect legacy.
The perfect little boy to carry his name into the future.
As friends and family gather beneath pastel decorations and forced smiles, a lavish gender reveal promises to be the happiest day of his life.
But when the coloured smoke clears, he discovers that fate has other plans. Because some fathers would do anything for a son.