In an extremely rare occurrence, a Texas woman gave birth to two sets of identical twins, TODAY reported. Experts say there's a one in 70 million chance of it happening, but Tressa and Manuel Montalvo welcomed their four little bundles of joy on Valentine's Day.
Montalvo was thrilled when she found out she was pregnant for the second time at age 36, without the help of the fertility treatments. At 10 weeks, doctors told the Montalvos they were expecting twins. At 12 weeks, they found out they'd be expecting quadruplets. The four baby boys were born via C-section at 31 weeks at The Women's Hospital of Texas in Houston.
The proud parents were initially just trying for a little sister for their son. Dad isn't opposed to trying again for a little girl but Tressa is a little more reluctant.