But stickylittlefingers - that's the sort of thinking that plays into Nadine Dorries' hands - the idea that women are completely free to choose when, where and how they have sex and who with, and it's only their lack of self respect/ poor judgement/ desire for a council house that leads to them having unprotected sex and getting pregnant. Personally I think it's a dangerous fallacy.
There's rape, for a start - much discussed recently on this board - which doesn't give women much choice about their sexual activity. No amount of self respect will help you if you meet a rapist.
But beyond that, there's a huge amount of coercive pressure on young women by individual men and the messages that society at large sends them. "He says he'll dump me if I don't sleep with him" was an old chestnut in the Just 17 problem pages when I was a teen, and I don't think for a minute that it's changed now. "He says condoms spoil the sensation" was another old favourite which I don't think has gone out of fashion.
You might argue that the bucket loads of self respect you're instilling in your daughters will protect them from that kind of bullslhit - and you might be right - but think about the other messages that your girls are getting. The coverage of Michelle Obama this week has been much more about what she's wearing than what she's been saying. Which is just the tip of an iceberg of female representation that prioritises their appearance, because women's main function in life is to be attractive to men. So that men can pursue the fantasy that women are there to serve them.
Your second paragraph I agree with completely. But don't buy into the myth that women and girls have complete freedom of choice over their sexual behaviour, and it's all their fault if they get pregnant.