She also faces a motion by opposition parties and her own nominal allies in the Northern Irish DUP for her government to be found in contempt of parliament for failing to publish in full the legal advice on Brexit that it commissioned.
The Speaker of the House has allowed for an emergency motion on whether the government is in contempt of Parliament for failing to publish the advice in full, adding that there was "an arguable case".
In November, the House of Commons unanimously passed a Labour motion calling for the release of any legal advice in full that had been provided to ministers on the proposed Withdrawal Agreement and framework for future EU-UK relationship.
Attorney General Geoffrey Cox was repeatedly challenged about the issue in the Commons on Monday but insisted it was in the public interest for the advice he gave to ministers to remain confidential.
Parliament is set to begin debating the divorce deal agreed between the government and the European Union tonight (local time), before a vote next Tuesday.
The matter will be debated by the Commons, and could lead to a vote to suspend the Attorney General for five days.
Earlier, Shadow Brexit Secretary Sir Keir Starmer told MPs the government had been "wilfully refusing to comply" with the express will of parliament.More news: Apple implements Do Not Disturb app on iPhone, after TRAIs warning
Responding to the result, the ruling Conservative Party's Leader of the House of Commons Andrea Leadsom said the government meant to publish the advice on Wednesday.
These concerns are not likely to derail the Brexit debates; however, the deal will probably not pass on its first reading based on Parliamentary arithmetic and May's minority conservative government.
The prime minister needs roughly 320 votes in the House of Commons to secure the approval of her deal.
Advocate General Campos Sanchez-Bordona stated that Britain could halt the entire process without the agreement of other European Union countries.
Mrs May said Britain will leave regardless of any future decision by the EU's top court and that the choice is between her deal or no deal.
May's spokesman, James Slack, said the opinion didn't change "the clear position of the government that Article 50 is not going to be revoked".
This is an extraordinary development, but these proceedings will pale into insignificance next week should Mrs May lose the meaningful vote.More news: Deutsche Bank premises raided in Germany amid money laundering probe
But her chances of winning majority backing for the deal look slim.
"MPs are tonight starting the process of taking back control".
In the most extreme no-deal scenario, shopping bills could rise by up to 10% but even in an orderly no-deal withdrawal, with a transition period, grocery prices could rise by 6%, he said.
They may try to alter or delay Brexit, or derail it altogether, but her team is sticking to the script.
Meanwhile, Mr Carney stepped up his warnings about the potential impact of a no-deal Brexit.
Sterling then recovered after an amendment on handing Parliament a greater say, should the Brexit deal be defeated on 11 December, was approved.
Theresa May is facing opposition in both directions over her Brexit deal.More news: NASA chooses private companies for future moon landings