Many young people dream of going off to college, but the high cost of tuition coupled with the stress of raising a child can make it feel like an impossible feat for teen parents. On this week's "16 and Pregnant," we'll meet Isiah, a young father who earned a college scholarship but turned it down in order to get married and raise his kid. In the sneak peek below, Isiah's mom and grandmother grill him and his wife, Christinna, about their decision. It sounds like Isiah's grandmother isn't even convinced that Christinna's carrying his baby!