The opposition Labor MP, Stella Creasy, said a House representative had told her it was against the rules to bring a child to a debate at Westminster Hall with her son on Tuesday.
“My son is 13 weeks old so I can’t leave him alone and I don’t have any maternity cover. So I kind of can’t win here,” Chrissy told BBC Victoria Derbyshire on Wednesday.
“I need to get in and want to be able to talk but I also can’t leave a baby that small, which I’m feeding at this time.
“I have been told very clearly that Parliament has obviously taken some time to write a law that it is an error of Parliament and against the courtesies of the house in bringing a child with you.
“But it does not seem at the present time that we have made a rule on the wearing of masks. It seems to be somewhat a reflection of how Parliament created another age when, you know, most MPs were probably men of a certain age and independent means.”
A spokesman for the House of Commons told CNN in an email that it is essential that all democratically elected MPs are able to perform their duties in and around Parliament.
“Members may at any time consult with the Speaker, Deputy Speakers, Clerks and Gatekeepers on their requirements while in the Chamber or Westminster Hall at any time,” the spokesperson said.
“We are currently in contact with Stella Creasy about this,” they added.
Chrissy told the BBC that while she did not bring her other child, a toddler, to work “because she would find everything breakable or scattered in the Parliament House in five minutes and causing a mess”, her infant son was “completely silent”.
Referring to the new rules published in September, Chrissie, who said she brought home her first child, said: “I don’t understand what has changed. My understanding is that there are barriers to mothers getting involved in politics and I think it hurts our political discussions.”
Chrissy lost a battle with the Independent Parliamentary Standards Authority this summer after she was told she couldn’t rent a place to cover maternity leave after the birth of her second child.
The rule change, which was voted on unanimously, was made to accommodate senators with newborns, allowing them to bring a child under the age of 1 to the floor of the Senate and breastfeed them during the vote.