Holly Willoughby, who pulled out of presenting duties on This Morning because of migraines, is not expected to return to the show on Tuesday.
The pregnant star was not able to present Dancing On Ice on Sunday after she was advised to rest by doctors.
Holly was also absent today from This Morning, which she co-presents with Phillip Schofield.
A spokeswoman for the show said she was not expected to front Tuesday's programme.
Phillip told viewers on today's show: "She's having very bad headaches apparently, but we said 'look, it's only telly, put your feet up and relax and when you feel right, come back to work again'".
He added: "I texted her this morning and she texted back saying that she's hoping she might be in tomorrow, she's feeling a little bit better, so that's good..."
Ruth Langsford stepped in for Holly on This Morning.
The programme said on its Twitter feed: "We can't say for sure if @hollywills will be back tomorrow but do hope that she's feeling better!"
Coleen Nolan stepped in to co-present Sunday night's skating contest on ITV.
Holly, 30, who is married to TV producer Dan Baldwin whom she met on children's show Ministry Of Mayhem, is expecting her second child in May.