The teenager was stripped of her British citizenship by Mr Javid last month, meaning she was not allowed to return to the country of her birth, but the home secretary did acknowledge Jarrah was a British citizen.
Conservative MP Phillip Lee said he was "deeply concerned" by Javid's decision, which was "driven by a sort of populism".
At least 100 deaths, almost all children, recorded en route or after arriving at camp, but could only be the tip of the iceberg. A friend of Begum said "the baby turned blue and was cold" before being rushed to a clinic inside the camp.
Following the incident, British politicians and members of the public criticised the Home Office for calling Begum a "security risk" and revoking her citizenship, with some even blaming Javid for the baby's death.
It emerged on Friday that Ms Begum, now 19, had lost her third child.
The women's parents are originally from Pakistan, and the Home Office could pursue the argument that they are Pakistani nationals.
In earlier interviews, Begum said that while she did not agree with everything the terror group had done, she has "no regrets" about joining ISIS and suggested that air strikes against the terror group in Syria somehow "justified" the Manchester Arena terror attack.
She also said she wanted to return to Europe, citing the hard conditions of the camp: "I'm scared this baby is going to get sick in this camp".
He added: "Sadly there are probably many children, obviously perfectly innocent, who have been born in this war zone". "This is a reminder of why it is so, so unsafe for anyone to be in this war zone".
His Holiness Hazrat Mirza Masroor Ahmad speaks at the Baitul Futuh Mosque in Morden London
Britain stripped Shamima Begum of her citizenship last month despite her wishes to return to the country. However, the government argued it was too unsafe to try to retrieve the newborn from the sprawling refugee camp where the pair lived.
"Working with the Red Crescent there for example, it should be possible to go and get people from the camps - if there was a political will".
Kirsty McNeill, a director at Save the Children UK, urged Britain to "take responsibility for their citizens" in Syria.
The U.S-backed SDF is now trying to take Islamic State's last, small patch of ground in eastern Syria.
The Foreign Office has been contacted for confirmation of the baby's reported death.
Left - Shamima Begum being interviewed by Sky News in northern Syria on February 17, 2019.
She added that she had never sought to be an IS "poster girl".
Neighbouring Austria said on Wednesday it would not help repatriate any citizens who fought for ISIS and other militant groups, as countries across the West wrestle with how to deal with returning militants.
‘Airwolf’ Star Jan-Michael Vincent Dead at 74
Born in Colorado and raised in Hanford, California, he went to Ventura College in Southern California after high school. He struggled with drug and alcohol problems that contributed to a career downfall after " Airwolf ".