Texas woman delivers 2 sets of identical twin boys; odds of such a birth one in 70 million

Mother: Pregnancy didn't involve fertility drugs

HOUSTON - A Texas woman has beaten long odds in delivering two sets of identical twin boys.

The Houston Chronicle reports Tressa Montalvo delivered her sons on Thursday -- Valentine's Day -- at The Woman's Hospital of Texas.

It says the odds of giving such a birth naturally are .

The 36-year-old Montalvo delivered sons Ace and Blaine at 8:51 a.m. Ace weighed 3 pounds, 10 ounces, and Blaine weighed in at 3 pounds, 15 ounces. Sons Cash and Dylan arrived a minute later -- Cash at 2 pounds, 15 ounces, and Dylan at 3 pounds, 6 ounces.

Montalvo says she and her 43-year-old husband, Manuel, planned the pregnancy but didn't use fertility drugs. In her words, "I guess we just succeeded a little too much."

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