I wanted to post a blog with a little information about twins. I am frequently asked-- since I think everyone knows that we are going to eventually have another baby-- if we are nervous about our next pregnancy resulting in twins. When I reply, "No. Our twins are identical," many people still do not know what this means. Here's my attempt at spreading a little "twin awareness." Our twins are identical , confirmed through genetic testing. They are monochorionic-diamniotic twins. Basically this means that my body produced one egg that was fertilized. Somewhere in between days 4-8, the egg split, creating identical twins. Identical or fraternal twins are a result of zygosity. Identical twins are monozygotic, meaning there was one egg that was fertilized and split, creating twins that share DNA . Because identical twins came from the same egg-- which is either male or female-- identical twins are always the same sex . Fraternal twins are dizygotic, meaning t...
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