It is hardly surprising to be honest. I didn't bother reading the whole article since in England you get something like that every week in the papers. I personally work for local government in fostering and you hear a lot of horror stories about different children and what they do.
Recently in the national press was a story about a 11-12 year old that was addicted to heroin. Personally I found that more abhorrent than pregnancy at that age. But both of them are wrong and any adults involved in either should be ashamed of what ever hand they have had in these matters.