Apparently Bristol has never heard of Google.
“There may be multiple forms of contraception, but I’m here to say that one fact remains. Those that practice abstinence have no chance of becoming pregnant,” Bristol Palin said Thursday, to cheers from the predominantly white and affluent audience. “Abstinence is not about morality, it is about reality. It is the only thing that works every time. My message is a simple one: Don’t make the same decision I made, just wait. Young ladies, please hear me.”
Based on what she said previously, this child was planned. I think she wanted to have a baby right away, but then found out her husband to be had not been honest with her on a former marriage.