I am a known poster on here and have told this before.
My DH (now deceased) had cancer, we had three DD's, two with SN. We also had an endowment mortgage that was inadequate, we were one of the many that were mid-sold numerous policies, negative equity etc.
I had planned all of my DD's, struggled to conceive my second, had MC's, studied how a foetus develops, all aspects of pregnancy, getting and staying pregnant had been an aim for 10 years.
I fell pregnant, contraception failure, whilst my DH was Ill, I was working in a low paid job, we had no choice but to terminate the pregnancy.
I had to wait until I was 10 weeks to have it done, i knew what I was getting rid of and it was a full sibling to my other three.
The other women on my ward were in similar positions, we were not young/uniformed and had to go home and look at a little person who, what we had got rid of probably would of looked like.
My DD's got good sex education at school and through after school clubs etc (and I filled in the gaps), if that isn't happening then that needs changing.
The OP's idea is ridiculous and abusive and would serve no purpose, other than to emotionally abuse already vulnerable girls (in some cases).
PHSE should work on self esteem and making positive choices, as well as what should happen in healthy/respectful relationships, that is how to cut down on the teen pregnancy rate.