British Labour MP Tulip Siddiq, a niece of Prime Minister Sheikh Hasina, has postponed giving birth in order to vote on Britain's divorce deal with the EU today.
Tulip Siddiq, 36, was due to have a Caesarian section on the big day, but medics have agreed to delay the operation until tomorrow so that she can vote on the withdrawal agreement struck between London and Brussels.
The opposition Labour MP plans to be pushed through the voting lobby in parliament in a wheelchair.
"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," she told the London Evening Standard newspaper.
A source in British Prime Minister Theresa May's Conservative party said it had offered to "pair" Siddiq, meaning a rival MP agreed not to vote to ensure her absence did not affect the outcome.
But Siddiq said she did not trust this informal system after the Conservatives broke a pair for a new mother MP last year.
Labour colleagues asked John Bercow, the speaker of the lower House of Commons, if Siddiq could have a proxy vote, but he said this was not in his power as such a voting system has not been implemented.
Bercow said he would like the procedure known as "nodding through" -- where an MP who is on the parliamentary estate but physically unable to cast their ballot has their vote counted -- extended to Siddiq's hospital bed in north London.