News Wentz Expecting Baby With Girlfriend Meagan Camper Published 4:59 PM PST, February 17, 2014 Instagram Fall Out Boy's Pete Wentz is having another baby! Wentz, 34, took to Instagram to make the announcement on Monday, February 17, that his girlfriend Meagan Camper was pregnant. RELATED PICS: Adorable Tots--Celebs and Their Cute Kids"We're super excited to announce we're expecting a baby!" Wentz said in a photo caption on Instagram. The snap-shot shows the couple laying side-by-side, kissing.Wentz and Camper have been together for almost three years. The musician has another child, 5-year-old son Bronx, with his ex-wife, singer Ashlee Simpson. Simpson and Wentz got divorced in 2011.