While housemates from the show have gone on to have kids together, Speidi's potential newborn could be the first ever conceived during the show.
On entering the house, it was revealed that the pair are planning to start a family this year.
Heidi is quoted by The Sun as saying ahead of the launch: “I am writing a coffee table wife type of book. It’s more like a fun project, something I enjoy doing, and then I’m getting ready to be a mom hopefully [in 2017].”
The blonde beauty admitted that it took Spencer some persuading to get on board with the idea.
She said: “You know, I had to pray to get my husband to even … agree to have a kid, and so this whole journey over the last few years … I have had to do.”
Could plans to 'make a baby' in the house be part of Speidi's new game plan?
The pair spilled to the house last night (Thursday) that they had been plotting for FOUR MONTHS ahead of the series.
James Jordan commented: "I'm not going to say I wouldn't like to win but I wouldn't analyse how I'm going to win... Jesus."
Austin Armacost remarked: "He [Spencer] said earlier today 'I just want to win to show up Rylan', to say 'I won All Stars and you won a regular season.'"
Later in the Diary Room, Austin admitted to being a bit confused about Speidi's intentions.
He told Big Brother: "I'm just thrown a bit I suppose. I thought Heidi and Spencer were going to be awful people from what I've seen and they're really lovely so that's thrown me.
"Spencer at times has been a bit of a konb but he's not a bad guy, yet."
Celebrity Big Brother continues nightly on Channel 5.