United Kingdom, May 14 -- Kelsey Parker thinks her children will struggle when her new baby calls Will Lindsay "dad".

The 34-year-old star - who has Aurelia, five, and tour-year-old Bodhi with late husband Tom Parker - admitted she has been getting "emotional" about some aspects of her and Will expecting a child together, three years after The Wanted singer Tom died of a brain tumour.

She told new! magazine: "Something that's making me emotional is that the baby's going to call Will 'dad' one day and I think that's going to be hard for them to navigate.

"They don't call Will 'dad' but I don't know how that's going to change when the baby's her. It might be strange for them.

"I have spoken to them about it and they kind of understand, ...