I had a dream last night where I was pregnant; I believe the womb was somehow transferred to me, as I was still a man. I knew it was twins and I was in the latter part of the pregnancy. I was naturally (over) protective of the children and me. I was also avoiding my wife in the dream. I gave birth to twin girls and woke up shortly afterwards.

Dreams of being pregnant are more common for women, but men have them, too. Why men would have them is best explained by the definition of the symbol. Here is a link to its meaning: dreamdoctor.com/dream-dictionary/definitions/pregnant.html

To understand why you had twins, here's a link to its definition: dreamdoctor.com/dream-dictionary/definitions/twins.html

Now, all you have to do is identify what it was in your waking life that you were giving birth to at the time of the dream.

Hope that helps!