Bristol Palin: Poster Child For Abstinence

Promoting sexual abstinence for fellow teens in appearances on ABC's Good Morning America and NBC's Today show this morning, Bristol Palin was questioned on how exactly she can preach something she obviously didn't practice.

Declining to discuss what methods of birth control she may or may not have used, Bristol, 18, told GMA's Christopher Cuomo, "Regardless of what I did personally, abstinence is the only ... 100 percent foolproof way to prevent pregnancy."

Bristol Palin also acknowledged that abstinence is "difficult."

Later, sexy beast Matt Lauer asked on Today what message she was sending by talking about not having babies while she was holding her sleeping son, Tripp.

"I'm just here to tell teens this is a really hard job," Palin replied.

The TV appearances, in which she was joined by her father, Todd Palin, were keyed to Bristol's new role as the Candie's Foundation's ambassador for a national campaign to raise awareness about the consequences of teen pregnancy.

She was asked about her former fiancé - and the father of her child - Levi Johnston, who appeared on various talk shows last month and spoke candidly about banging her and about his icy relations with the Palin family over Tripp.

"I'm not here to talk about my personal life," Palin said, though she did add, with no further explanation, that "I'd love Levi to be part of [Tripp's] life."

Follow the jump for a video of Bristol Palin on the Today Show ...