United Kingdom, March 27 -- Olivia Culpo won't find out her baby's sex before it is born.

The 32-year-old model has insisted it would be "such a nice surprise" to wait until she gives birth to her and Christian McCaffrey's first child to find out if they have a son or daughter because ultimately, all she really wants is a healthy child.

She told E! News: "It would be such a nice surprise.

"There's really nothing else that I could ask for.

"Being healthy, that's all you can ask for.

"That's part of why I'm not finding out the gender either.

"I feel like I have a job and that's to be as healthy and mindful as I possibly can."

However, the San Francisco 49ers running back is more keen to find out if they are expecting a boy or a girl,...