Fergie has revealed she is open to the possibility of having more children.

The 42-year-old singer already has four-year-old son Axl Jack with her estranged husband Josh Duhamel - whom she split from last year after eight years of marriage - but she has revealed she would ''never say never'' when it comes to expanding her brood further, but she isn't thinking about the topic right now.

When asked if she would have any more children, the 'Fergalicious' hitmaker said: ''You never know. I never say never. It's definitely a new year and the circumstances are - new! So, right now I'm not thinking about that because I've got so much on my plate and I'm just trying to be the best Mom for my little Punky Pie - That's what I call him - He's my little Punky Pie - I call him Punky, because he loves pumpkin pie!''

And the former Black Eyed Peas member also has a hectic schedule to balance with her home life, so another small tot may not be on the cards for some time.

She added: ''As any hard-working mom knows, it is a delicate balancing act that I have to be juggling all of the time with the different schedules, the family schedules, the work schedules, I'm constantly having to have boundaries, make sure that all of those hours are in and it's a balanced lifestyle because I've got so much on my plate that sometimes I'm just a tired Mom!''

Fergie doesn't think her life ever has a ''dull moment'', and whilst she enjoys the excitement, she admits she'd like time to ''chill'' in 2018.

Speaking at a panel for her new Fox singing competition series 'The Four' on Thursday (04.01.18), she said: ''Spending time with Axl, just he and I is different than having a play date and him being around other kids so that's got to balance out as well. They're different dynamics to each of the categories. There's never a dull moment, let's put it that way, so if you're a person that likes excitement than you will be very busy.

''I've always worked all my life so I kind of have gotten used to balancing and trying to balance it all. The thing that I would like to get more of in 2018 is a little bit more me time, just to chill.''