Guam - It's every four years we go through a leap year, and like we did this week, we got one extra day. At 8 pounds 2 ounces, 21 inches long, Arabella Castro is a bundle of joy who had her parents leaping for excitement when she was born at 2:11pm at Sagua Managu on February 29, 2012.

"We don't know what to expect because this is our first baby being born in a leap year. so just at a lost [sic] for words," said Sonny Castro. Her mother, Meilani Asuncion, said, "It feels the same, I was just worries [sic] about giving birth on that day and it ended up happening but we'll see."

Her parents were hoping she'd arrive earlier then on the final day of the longer than usual February. (Maelani's projected delivery date was actually February 27.)  Arabella now joins her two older brothers and older sister. Sonny said, "They are good so far, they try to be the big sister, big brother and they are curious."

Both Sonny and Maelani are still uncertain just how they will celebrate their leap year baby's birthday next year, at least until the next leap year when Arabella turns four years old. "We are just going to keep it in February, the last day in February and she'll have a normal birthday like the other babies," said Sonny.

"Maybe we'll celebrate on both days, February 28 and March 1 won't hurt," she said. "That's fine, too," Sonny added.

Arabella is one of five other leap year babies born on Guam this year. The Guam Memorial Hospital also delivered one boy and three girls on February 29.