Mila Kunis  made a quick stop at Ralph's in Studio City, CA, to stock up on groceries on Monday. She carried multiple bags out to her car and covered her growing baby bump  in a casual outfit. Mila's been keeping quiet about her pregnancy since the exciting news was revealed last month, though she did make a recent red carpet appearance at CinemaCon . Her baby bump wasn't the only thing on display during the press event, since she also showed off her diamond engagement ring from Ashton Kutcher . She and Ashton are making headlines for their personal life as well as their professional lives; she's making a cameo with Ashton on Two and a Half Men, and the first clip of the real-life couple  sharing the small screen was released this week.