Kate Cox was forced to flee the state for a life-saving abortion last month after disagreement between courts narrowed her window of opportunity.
The first lady revealed her workaround for fighting with the president in the presence of their security detail.
The president and first lady honored the life and legacy of Rosalynn Carter by saying she "walked her own path, inspiring a nation and the world along the way."
First lady Jill Biden has tested positive for COVID-19 but is experiencing only mild symptoms currently.
The first lady hosted a conversation on Tuesday with four women, including a Texas doctor, who shared emotional stories of being denied necessary reproductive care.
"I felt this sense of decorum and civility that binds together people of all nations,” said Biden following the London ceremony on Saturday.
Biden became the first in her position to attend a coronation in the U.K. on Saturday.
The first lady is representing the U.S. at the historic event.
The star basketball player said the Tigers should celebrate with former President Barack Obama and former first lady Michelle Obama rather than Joe and Jill Biden.
President Joe Biden told the royal that the First Lady would be attending next month's ceremony during a call on Tuesday.