"And when we were trying to have this baby, it wasn't the process we thought it would be, so we were just so grateful to even get pregnant," she continued.
Watch: Stacey Solomon reveals daughter's name
"I don't want to push it anymore. This is enough."
Solomon and Swash share two-year-old son Rex as well as Rose.
She is also mum to 13-year-old Zach, who she had at the age of 18 with then-boyfriend Dean Cox, and nine-year-old Leighton, whose father is the star’s former fiancé Aaron Barnham.
The couple also lives with Swash’s 13-year-old son Harry, who he had with ex-fiancé Emma Sophocleous.
Solomon and Swash started dating in 2016 after meeting on I’m A Celebrity... Get Me Out Of Here! years prior as they both won their respective seasons.
The pair got engaged on Christmas Eve of last year but have had to postpone their wedding till after the arrival of the new baby.
“We are going to move it back a bit, maybe not until next year," said Solomon this summer, "but we both said we’d be a bit gutted to look back at pictures and all of our babies weren’t there.
“So for the sake of a few months we will do it when they’re all here.”
Watch: Stacey Solomon welcomes baby girl at home in Pickle Cottage