Obviously, after an abortion it is too late for a woman to change her mind about the desirability of the child.
Why not counsel women that keeping their baby is the best option because they could have whatever outcome they desire without having to have their baby killed. Carrying to term would give them the chance to hold the baby in their arms and then decide whether to keep the baby for themselves, or should they still decide that they don’t want to keep the baby, adoption is always an option. Abortion is a final decision they can never take back, with the worst possible outcome: death.