Television presenter Holly gave birth to a baby girl on 14 April, after going into labour a month early.
The This Morning host announced the news via her Twitter page, posting:
"Thank you for all your support these last few days. Belle Baldwin finally arrived at 5:10pm today weighing 5lbs 2oz. She's amazing."
Holly married her TV producer husband Dan in August 2007.
The couple already have a son together, one-year-old Harry.