She said when she and 3-year-old Jameson started showing symptoms two weeks ago they were already sheltering in place.
Pink said she felt fortunate her doctor was able to get her and her son tested.
“It is an absolute travesty and failure of our government to not make testing more widely accessible,” she wrote on Twitter.
She said testing needs to be more available to “protect our children, our families, our friends and our communities.”
She added that she was donating $1 million — $500,000 each to the Temple University Hospital Emergency Fund and the City of Los Angeles Mayor’s Emergency Covid-19 Crisis Fund.
“Thank you to all of our healthcare professionals and everyone in the world who are working so hard to protect our loved ones,” she wrote.
The three-time Grammy Award winner is a native of Pennsylvania and her mother worked at Temple.
Pink lives in Los Angeles with her husband and two children.