Not to worry, as told in Heaven is Real, children who don’t make it to birth still make it to heaven. They play at the feet of Jesus and live happily for ever. Too bad their former mother’s can’t say the same thing.
The mothers that weren’t can get there too.
Repentance and Forgiveness and Salvation are open to all who will come.
As our Lord said, there is only one sin that will not be forgiven, blaspheming the Holy Spirit (Rejecting Christ).