Is It Possible To Get Pregnant Twice And Carry The Babies At The Same Time?

Yes, this is possible, and it is not a rare happening. Normally, when a woman is carrying two babies, in the same pregnancy, we call those babies identical twins. In the case of a double pregnancy, the babies are called fraternal twins. It is estimated, 2/3 of the twins born are fraternal, rather than identical twins. Yet they may look enough alike, after birth, to appear as identical twins.

If, you would like to read the very simple explanation for fraternal twins and identical twins here is really good website to read and enjoy.
www.keepkidshealthy.com
This site is full of other information of interest for parents who are expecting twins, or have a history of twins in their families. One section I like is "Annoying Questions," so many people ask. I love the suggested responses!

Stay healthy and good luck!