The Labour MP for Hampstead & Kilburn was wheeled into the chamber ahead of the first vote on Tuesday night, on an amendment brought by Tory MP John Baron, reports The Evening Standard.
Tulip Siddiq, 36, could be seen in the chamber chatting to other MPs including fellow Labour MP Stella Creasy and Conservative Commons' Leader Andrea Leadsom.
Usually, heavily pregnant MPs, those with newborns and the sick are able to be “paired” with an opposition party member who also cannot vote so the overall result is not affected.
But after Conservative Party chairman Brandon Lewis broke a pairing arrangement with Liberal Democrat Deputy Leader Jo Swinson in July 2018, Tulip said she could no longer trust the system.
Tulip wrote on Twitter thanking people for support after her decision was first reported by the Evening Standard.
Thank you all for supportive messages. My decision to delay my baby's birth is not one I take lightly. Let me be clear, I have no faith in the pairing system - in July the Govt stole the vote of a new mother. It's my duty to represent Hampstead & Kilburn, and I will do just that.
— Tulip Siddiq (@TulipSiddiq) January 15, 2019
She said, "My decision to delay my baby's birth is not one I take lightly. "Let me be clear, I have no faith in the pairing system, in July the Govt stole the vote of a new mother.
"It's my duty to represent Hampstead & Kilburn, and I will do just that."
Tulip told the Standard earlier this week: “If my son enters the world even one day later than the doctors advised, but it’s a world with a better chance of a strong relationship between Britain and Europe, then that’s worth fighting for.”