Conor McGregor ’s family just got a little bigger. The UFC star and his fiancee Dee Devlin have welcomed their fourth child to their family. McGregor announced the news on Thursday afternoon via his Instagram account. “Another chunky healthy boy into the world. Dee you are my hero ,” McGregor wrote. View this post on Instagram A post shared by Conor McGregor Official (@thenotoriousmma) McGregor (22-6 MMA, 10-4 UFC) was recently readmitted into the UFC drug-testing pool , and will be eligible to return to competition in April.