President Barack Obama will deliver the keynote address at Planned Parenthood's annual gala dinner in Washington D.C. on Thursday.
"President Obama has done more than any president in history for women's health and rights," Planned Parenthood Federation of America Cecile Richards said in a statement.
Women's access to health care was expanded under the Affordable Care Act, known as "Obamacare," Richards said.
A pro-life web site criticized the president's attendance of the Planned Parenthood gala during an ongoing murder trial in Philadelphia of an abortion doctor. Kermit Gosnell was charged with killing a woman and seven babies.
Planned Parenthood clinics offer health care services to women including cancer screenings, check-ups, family planning, and abortions. Obama recently spoke about his beliefs on abortion.
"What I can say is this: You know, I think, President (Bill) Clinton said it pretty well when he said abortion should be safe, legal and rare," Obama said in an interview with NBC's Today show.