Remember The Adorable Laughing Quadruplets? Well, They're All Grown Up! - Page 2 of 15 -DesignBump

The reason they are so unique? Well, their mother Allison, conceived them 100% naturally, without the help of fertility treatment. That means that one egg in Allison’s womb split into four different embryos, creating four identical babies. Usually, quadruplets are the result of multiple eggs being fertilized during fertility treatment, which is why Allison’s pregnancy was so spectacular.

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