have one in the oven
have one in the oven
To be pregnant. You're having a baby shower for Carla today? Wow, I didn't even know she had one in the oven.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have one in the oven
Fig. to be pregnant with a child. She's got three kids now and one in the oven.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.