MANILA, Philippines >> She came into the world at two minutes before midnight, a tiny, wrinkled girl born into a struggling Manila family. On Monday, she became a symbol of the world’s population reaching 7 billion people and all the worries that entails for the planet’s future.

Danica May Camacho, born in a crowded public hospital, was welcomed with a chocolate cake marked "7B Philippines" and a gift certificate for free shoes. There were bursts of photographers’ flashes, and speeches by local officials.

The celebrations, though, reflected symbolism more than demography.

Amid the millions of births and deaths around the world each day, it is impossible to pinpoint the arrival of the globe’s 7 billionth occupant. But the U.N. chose Monday to mark the day with a string of festivities worldwide, and a series of symbolic 7-billionth babies being born.

Danica was the first, arriving at Manila’s Jose Fabella Memorial Hospital at two minutes before midnight Sunday — but doctors say that was close enough to count for a Monday birthday.

"She looks so lovely," the mother, Camille Galura, whispered as she cradled the 2.5-kilo (5.5-pound) baby, who was born about a month premature.

The baby was the second for Galura and her partner, Florante Camacho, a struggling driver who supports the family on a tiny salary.

Dr. Eric Tayag of the Philippines’ Department of Health said later that the birth came with a warning.

"Seven billion is a number we should think about deeply," he said.

"We should really focus on the question of whether there will be food, clean water, shelter, education and a decent life for every child," he said. "If the answer is ‘no,’ it would be better for people to look at easing this population explosion."

In the Philippines, much of the population question revolves around birth control. The government backs a program that includes artificial birth control. The powerful Roman Catholic church, though, vehemently opposes contraception.

Camacho, a Catholic like her husband, said she was aware of the church’s position but had decided to begin using a birth control device.

"The number of homeless children I see on the streets keep multiplying," Camacho said. "When I see them, I’m bothered because I eat and maybe they don’t."

Demographers say it took until 1804 for the world to reach its first billion people, and a century more until it hit 2 billion in 1927. The twentieth century, though, saw things begin to cascade: 3 billion in 1959; 4 billion in 1974; 5 billion in 1987; 6 billion in 1998.

The U.N. estimates the world’s population will reach 8 billion by 2025 and 10 billion by 2083. But the numbers could vary widely, depending on everything from life expectancy to access to birth control to infant mortality rates.

In Uttar Pradesh, India — the most populous state in the world’s second-most populous country — officials said Monday they would be appointing 7 girls born Monday to symbolize the 7 billion.

India, which struggles with a deeply held preference for sons and a skewed sex ratio because of millions of aborted female fetuses, is using the day to highlight that issue.

"It would be a fitting moment if the 7 billionth baby is a girl born in rural India," said Dr Madhu Gupta, an Uttar Pradesh gynecologist. "It would help in bringing the global focus back on girls, who are subject to inequality and bias."

According to U.S. government estimates, India has 893 girls for every 1,000 boys at birth, compared with 955 girls per 1,000 boys in the United States.

On Monday, the chosen Indian babies were being born at the government-run Community Health Center in the town of Lall, on the outskirts of the Uttar Pradesh capital of Lucknow.

Six babies were born from midnight to 8 a.m. Monday. Four were boys.

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Associated Press writers Tim Sullivan in New Delhi and Biswajeet Banerjee in Lucknow, India, contributed to this report.