EMILY Atack was helped into her car by medics as the heavily pregnant star left the TV BAFTAs.
The 34-year-old is expecting her first child with scientist boyfriend Alistair Garner and earlier in the day stunned on the red carpet in a pale blue gown.
But it appeared that the temperatures of the hottest day of the year so far became too much for former The Inbetweeners star Emily as she was seen making a swift exit and being assisted by medics.
A source told The Sun: "Emily was being helped by security to find her car.
"It took a while for them to locate it so medics found her a place to sit and offered some water as it was so hot."
Emily recently stunned in snaps of her wearing a red swimsuit as and Alistair enjoyed a UK getaway.
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The actress also revealed some of her pregnancy cravings.
She said: "Been asked a lot about what my current cravings are third trimester.
"It's been nothing but homemade banana bread and pears."
Emily previously appeared on BBC Breakfast and revealed the gender of her unborn baby.
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She said: "I'm six months pregnant and I wasn't going to say this, but, I am going to say this... I'm having a baby boy."
Emily revealed her pregnancy joy in December, writing on social media: "Hello Everyone, it's been a little while but I'm back with some news. I'm delighted to share with you all that we’re having a baby!!
"I've never been so happy and utterly terrified at the same time. Please go easy on me.
"Every day is mixed with thrill, fear, joy, hysteria, topped off with a lot of vomiting - a bit like when you’ve just stepped off of the Oblivion at Alton Towers on a hangover. I’ve got to know my body on such an insane level."