Stacey Solomon is expecting her second child with fiance Joe Swash

Stacey explained that the couple have been trying to get pregnant for some time but had a series of negative tests.

She began on her Instagram Stories: “Sorry I’ve been so quiet… But we have something we are excited to share with you. I feel nervous for so many reasons."

Alongside a negative test, she continued: “For a really long time we’ve been trying for another pickle… It didn’t work out and this was our news quite a few times.

“We decided we were so lucky already to have our boys. It is our biggest privilege in life and we are so grateful to be parents so we stopped trying and counted ourselves so so so blessed already.”

The couple were "so grateful" when they learned there is an "extra heartbeat" inside her tummy after the 31-year-old TV star felt "yuck".

She shared: “For a while now I’ve felt so yuck and even though I thought about what it felt like I didn’t even want to go and check at first because well, just because, you know (I don’t even like to write it).

“But yesterday we went to check what was going on… And we were so grateful to hear an extra heartbeat in my tummy."

To celebrate their baby joy, the family decided to get their Wendy house that sits in the grounds of their sprawling Essex mansion finished.

She gushed: "We honestly couldn’t believe it.

“So we told the boys and we’ve spent yesterday and today finishing the Wendy house ready to welcome a new pickle into our lives.”

Speaking to her brood, she wrote: “Boys we are so so so excited for you all. You’re already the most incredible brothers we could have ever imagined raising...

“Dear Harry, Zachary, Leighton & Rex… you fill our hearts so so much they’re bursting. We can not wait to open our hearts even more and watch you open yours and see them grow ever bigger to fit all the love… Inside for your new Pickle.”

Alongside a picture of her family, she added: “We are growing another pickle We’ve never felt so grateful… I have no words. We didn’t think we would get the chance. We love you all to the moon and back. Lots of love From Me, Joe, Harry, Zach, Leighton, Rex, and our little pickle."

The couple are due to tie the knot at their family home - which she dubbed Pickle Cottage - this summer.

Joe, 39, is also a father to Harry, 13, whom he has with ex Emma Sophocleous.