Ace Montalvo is shown in the NICU at The Women's Hospital of Texas on Monday, Feb. 18, 2013, in Houston. Ace is one of four boys, two sets of identical twins, delivered by Tessa Montalv

 

              Ace Montalvo is shown in the NICU at The Women
Ace Montalvo is shown in the NICU at The Women's Hospital of Texas on Monday, Feb. 18, 2013, in Houston. Ace is one of four boys, two sets of identical twins, delivered by Tessa Montalvo on Valentine's Day, born at 31 weeks. The arrival of Ace and Blaine then Cash and Dylan a minute later was even more unusual because the Montalvos did not take fertility drugs or use in-vitro fertilization. (AP Photo/Houston Chronicle, Brett Coomer )
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