Teen birth rates highest in most religious states.
It feels like I've posted about various studies with the same findings about eighty kajillion times in the last five years. And it's not going to change, because, to opponents of contraception and abortion, a high teen birth rate is not a bug of their philosophy, but a feature.
It's not that they actively want or hope teens will have sex and get pregnant, but they are resigned to that reality (whether they'll publicly admit it or not) and regard a high teen birth rate as solid evidence that their discouragement of contraceptive use and abortion is working.
Babies born to young, unwed parents are proof of their success.