a mother gives birth to four baby boys. >> but what's unusual is they're two sets of identical twins. that's why this is our favorite story of the day. >> reporter: it's like winning the lottery of love. they are going to be rich the rest of their lives. they planned on one baby. when they went to a specialist last year, they got a shock. >> he was quick to say right away, you have four. of course, i couldn't believe it. if i wasn't already laying down, i would have been on the floor. >> reporter: they're adding four boys. two sets of identical twins, all delivered valentine's day by c-section at the woman's hospital of texas. doctors say the odds of having two sets of twins from different placentas is 1 in 70 million. tressa had to be extremely careful with her pregnancy. >> a lot of patients end up being in the hospital for prolonged periods of time. but she stayed compliant and