The actress appeared to drop a huge hint about her baby’s sex as she initially used a pink heart, before deleting her post and replacing it with a red one.
Opening up about how she is feeling, the poorly star, 34, told her followers: “Overwhelmed by the messages of support, thank you all. I’m stuck at home very sick.
“So your kind messaged really do cheer me up. So do M&S ginger biscuits, turns out.”
Alongside her words, Emily shared an image of her growing baby bump as she rested a cup of tea and a biscuit on it.
Over the weekend, the comedian announced she was expecting her first child with Dr Alistair Garner.
The Sun later revealed that Alistair is the son of her late uncle – Dr Stephen Garner – who married Emily’s aunt Jane Robbins in 1994.
An insider said: “Emily and Alistair consider themselves more family friends but they are cousins who aren’t related by blood.
“They grew up together and have always got on really well, but last year they started to get closer.
“It has been a really natural evolution of their friendship and they both have strong feelings for each other.
“Emily and Alistair were thrilled when they found out they were expecting and are really looking forward to becoming parents.
“Their respective families are totally supportive and have told them they think they’re a lovely couple.
“It is a really exciting time for them.”
Emily is already five months pregnant and has moved in with Alistair as they prepare for their baby.