Who’s in townContemporary-blues guitarist and keyboardist Lucky Peterson performs at Biscuits and Blues. [8 and 10 p.m., 401 Mason St., S.F.]LecturesTeen pregnancy: Speakers from the fields of health care, psychology and politics discuss the realities and politics of adolescent reproductive care. [6 p.m., Commonwealth Club, 595 Market St., S.F.] Read More