Why are you sooo concerned with the details of this child’s conception? Leave that to God.
The only difference between this mom’s sin and your sin or my sin, is the knowledge of this mom’s sin became public because she chose not to have an abortion.
Of course we have baby showers for sinners. We are all sinners.
However, in the other instance, having a baby shower in a church for a child produced in an affair while the injured spouse of the person who cheated is in attendance of that church, AND her husband and mistress seem to be continuing their relationship, is in incredibly poor taste. Any shower for THAT child should not be in the church, where it is sincerely causing scandal and injury to another person, and best held quietly in the home of a friend, somewhere else. However, that baby, too, is a human being, and symbols that the baby is innocent, and was welcomed and loved are not out of line. Baby will appreciate when older that the community did not turn its back on the child in horror.