(WFLA) – A family grew by six in a matter of minutes Friday, according to Woman’s Hospital of Texas.

Thelma Chiaka gave birth to sextuplets, two girls named Zina and Zuriel and four boys, whose names were not revealed. And it all happened in the span of 9 minutes, the hospital said in a press release

The babies weighed between one pound 12 ounces and two pounds 14 ounces. 

According to the hospital, mom is doing well and the babies are in stable condition. They will continue to receive care in the hospital’s advanced neonatal intensive care unit. 

The hospital says there’s a 1 in 4.7 billion chance for someone to give birth to sextuplets.