Kids are going to have sex.
There it is...the uncomfortable truth. Doesn't matter how you raise them or with what values.
With that on the table, what is the solution to unwanted pregnancies? Abstinence education? Good luck with that.
The obvious answer is giving them access to birth control and teaching them how NOT to get pregnant. And there's nothing stopping you from teaching your abstinence values at the same time, maybe you'll get lucky and have a child who resists teen sex.
How did birth control become the bad guy?
So tell us all then how for thousands of previous years with no sex education or contraception the pregnancy rates among non married ladies stayed so low that the numbers were almost nonexistent? Yet since the 60's with sex education and contraception the numbers keep going up. You have bought a lie I suggest you do some research on your own and quit regergatating the same old lines that PP keeps repeating.