It's her 19-year old boyfriend's.

I don't know that this is "trailer park trashy." A lot of girls from all walks of life get pregnant before they should. Definitely not defending her, but it does happen.

What I definitely fault her for is her response. She's an icon in the eyes of a lot of young girls out there. She should have immediately run the media circuit, working to become the poster child for the error of underaged sex.