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Texas mom gives birth to two sets of identical twins

One lucky Houston mother is adding four new boys to her family. The quadruplets aren't just any typical multiple birth children: They're two sets of identical twins. The odds of that happening is one in 70 million deliveries.

Tressa Montalvo is now the proud mom of Ace (weighing 3 lbs., 10 oz.), Blaine (3 lbs., 15 oz.), Cash (2 lbs., 15 oz.), and Dylan (3 lbs., 6 oz.) The baby boys were born on Feb. 14, 2013 at The Women's Hospital of Texas in Houston. Identical twins Ace and Blaine came out first at 8:51 a.m. Cash and Dylan followed on minute after.

"We tried to stick to the A-B-C-D theme when naming them," Tressa said in a press release. "We didn't expect it, we were trying for just one and we were blessed with four."

Tressa, 36, and her husband Manuel Montalvo, Jr., 43, found out that she was expecting four bundles of joy during her tenth week of pregnancy.

"When we got to Dr. Kirshon's office, he was quick to say right away, 'You have four,'" mother Tressa Montalvo said to CBS affiliate KHOU in Houston. "And, of course, I just couldn't believe it. If I wasn't already lying down on that table, I would have been on the floor."

"Basically, I just pumped my fist and I was like, 'Yes! Home run,'" Manuel added to KHOU.

Tressa and her husband wanted to have a brother or sister for their 2-year-old son Manuel. Remarkably, they didn't use any fertility treatments or pills.

"No fertility drugs were used. We planned the pregnancy?I guess we just succeeded a little too much!" Tressa said in the press release.

Tressa was able to carry the babies until 31 weeks, and gave birth via C-section. The boys are all healthy and are expected to go home in four to six weeks.

With five boys, the Montalvo already have a large family. However, they still want another addition.

"We want a girl," Manuel said in a press release.

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