SIRAKANO, Uganda — At age 45, after giving birth to 13 children in her village of thatch roofs and bare feet, Beatrice Adongo made a discovery that startled her: birth control.
"I delivered all these children because I didn't know there was another way," said Adongo, who started on a free quarterly contraceptive injection last year. Surrounded by her weary-faced brood, her 21-month-old boy clutching at her faded blue dress, she added glumly: "I fear we are already too many in this family."
On a continent where fewer than one in five married women use modern contraception, an explosion of unplanned pregnancies is threatening to bury Adongo's family and a generation of Africans under a mountain of poverty.
Promoting birth control in Africa faces a host of obstacles — patriarchal customs, religious taboos, ill-equipped public health systems — but experts also blame a powerful, more distant force: the U.S. government.
Under President George W. Bush, the United States withdrew from its decades-long role as a global leader in supporting family planning, driven by a conservative ideology that favored abstinence and shied away from providing contraceptive devices in developing countries, even to married women.
Bush's mammoth global anti-AIDS initiative, the President's Emergency Plan for AIDS Relief, poured billions of dollars into Africa but prohibited groups from spending any of it on family planning services or counseling programs, whose budgets flat-lined.
The restrictions flew in the face of research by international aid agencies, the U.N. World Health Organization and the U.S. government's own experts, all of whom touted contraception as a crucial method of preventing births of babies being infected with HIV, the virus that causes AIDS.
The Bush program is widely hailed as a success, having supplied lifesaving anti-retroviral drugs to more than 2 million HIV patients worldwide.
However, researchers, Africa experts and veteran U.S. health officials now think that PEPFAR also contributed to Africa's epidemic population growth by undermining efforts to help women in some of the world's poorest countries exercise greater control over their fertility.
"It was a huge missed opportunity to integrate HIV/AIDS and reproductive health in ways that made sense," said Jotham Musinguzi, a Ugandan physician who heads the Africa office of Partners in Population and Development, an intergovernmental group that promotes sexual health in developing countries.
In some countries that received substantial PEPFAR funding, such as Uganda and Kenya, health surveys have found that fertility rates remained constant or even rose slightly over the past decade. In Uganda, where many men want large families and abortion is illegal except to save a woman's life, the average woman bears 6.7 children, one of the highest rates in the world.
This small nation of rolling hills and banana trees is at the epicenter of Africa's demographic boom. Uganda is roughly the size of Nebraska, but in 40 years its population is projected to triple to 96 million, surpassing Japan, according to the Population Reference Bureau, a Washington research center.
Stanching that tidal wave will require a dramatic increase in contraceptive use, currently practiced by only 18 percent of married women.
"There hasn't been a country in the world where the birth rate came down without it," said Carl Haub, a senior demographer with the population bureau.
AN UPHILL BATTLE
A woman has to be strong to have a small family in Uganda.
The high-fertility cues start from the top: The longtime president, Yoweri Museveni, has often said that a large population could turn his landlocked nation into an economic power. His wife, Janet Museveni, is a born-again Christian who's urged women not