The eldest daughter of former US vice presidential candidate Sarah Palin is pregnant with her second child.
Bristol Palin is in the early stages of pregnancy and was somewhat downbeat when interviewed by website TMZ.com.
Ms Palin, who split from her US Marine fiance Dakota Meyer last month, told a reporter she knows it will be a "huge disappointment to my family, to my close friends, and to many of you".
She added that she was "trying to keep [my] chin up on this one".
"I do not want any lectures and I do not want any sympathy," she said.
Bristol (23) gave birth to her first son Tripp when she was 18. Her pregnancy was announced soon after her mother was named John McCain's running mate in August 2008. She has since separated from Tripp's father, Levi Johnston.
Sarah Palin, the former governor of Alaska, ran as McCain's running mate against Barack Obama and Joe Biden.
Subjected to much ridicule during the campaign, Palin remains the darling of the Tea Party wing of the Republican party.
Bristol hit the headlines again in September after reports stated she was involved in a brawl alongside older brother Track outside a house in Alaska.
No charges were brought regarding the incident.