In the end

Two siblings living on their own after their parents death the younger sister kenzie falls in love with someone named jake but her brother marcus doesnt approve because hes in college and she's still in highschool so they secretly date for a year or two but what happens when she winds up pregnant? How's she gonna tell her brother when he forbid her from seeing jake how will kenzie deal with the pregnancy when marcus wont let her out his sight and wont let her see jake