The singer, 38, also hinted the name of his first child, due any day, will be a traditional one.
"I don't think she's going to come today, I think it's going to be more likely next week," said Robbie, who performed in Glasgow earlier this week.
Pop superstar Robbie Williams has a private jet on standby as he plays a sellout concert in case his pregnant wife goes into labour.
The singer, 38, also hinted the name of his first child, due any day, will be a traditional one.
"I don't think she's going to come today, I think it's going to be more likely next week," said Robbie, who performed in Glasgow earlier this week.
We moderate all comments on HeraldScotland on either a pre-moderated or post-moderated basis. If you're a relatively new user then your comments will be reviewed before publication and if we know you well then your comments will be subject to moderation only if other users or the moderators believe you've broken the rules, which are available here.
Moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours. Please be patient if your posts are not approved instantly.