Christen Callahan is 18 and wouldn’t give up her 3-year-old daughter for anything. But, warned the teen mom from Gloucester, Mass. — where a virtual epidemic of high school pregnancies has been tied to a pact reported in TIME magazine — having a baby at such a young age comes at an enormous price.

“You lose everything,” Callahan told TODAY’s Meredith Vieira Friday in New York. “You lose your friends. You lose being able to go out. I know a lot of people that like to go out every night. You can’t really do it. You lose — you lose everything.”