Everything we know about Cheryl and Liam's baby

'We are all madly in love and overwhelmingly happy with our little arrival.'

Cheryl and Liam's pregnancy has been shrouded in secrecy from the start. It wasn't until her L'Oreal campaign - aka Cheryl's pregnancy shoot - when she was already eight months pregnant in February that it was confirmed that the star was pregnant at all.

And, this Mother's Day, Cheryl and her One Direction partner Liam Payne announced that they became parents to a healthy 7lb 9oz son on Wednesday 22nd March after Cheryl gave birth in London's Chelsea and Westminster Hospital. (Yes, this was the same day as the Westminster attack - which may well be why they held off telling the world until this weekend.)

However, The Sun have reported that leaked legal documents for Cheryl and Liam stated that they would make their baby news public 'in their own time.'

Cheryl put up this *adorable* photo of Liam and baby on her Instagram, explaining how Mother's Day had changed for her forever. (Aww!)

And, Liam, 23, posted the same photo on his Instagram, saying: 'My close friends and family know there are very few times when I'm left speechless... wow! I'm incredibly happy to welcome our new baby boy into the world, it's a moment that I will never forget for the rest of my life and my favourite memory I have so far. I'm completely in awe of his incredible mother and how she has been the whole way through this, she's really made my dreams come true. We haven't named him yet but he's already capturing hearts including mine. I feel very blessed. Happy Mother's Day everyone!'

Although the little one doesn't have a name yet, the internet has already predicted what Liam and Cheryl are going to call their baby based on names they've said they like before.

And it seems that the pair are celebrating their child's beginning of life in Liam's Surrey home, which Cheryl moved into last month. Reports are also in that Cheryl's mum, Joan, will be moving in to help the pair settle into their new roles.

Congrats all round!