Unfortunately, a lot of people who are under the influence of religion believe that marriage is for creating children, and many of those people received very little to no sex ed.

The ideas that "every child is a blessing" and "God will provide" are used to handwave away the importance of people's bodily autonomy and to deflect the reality that people can and should have access to the resources to chose if, when and how many children they have.

I've taken to calling them reproductive luddites. They're afraid of contraceptive technology.