What was Mary thinking?

I often think that others must think like me. I know that isn't the truth or my husband would be a much better husband! But, what was Mary thinking? Throughout her life, she suffered so much, yet received such a great blessing.
At learning that she was pregnant, imagine what others thought of her and her claims that she was a virgin. Think about teenagers at the present time...how many of us would believe a pregnant girl, if she claimed that she is a virgin? How many of us would laugh at her and tell her that she is crazy? Not only did Mary have to deal with that, she sure wasn't wealthy so she surely stressed about where food, shelter, basics of life were going to come from. Some may argue that she was carrying Jesus and had to feel so blessed and know that she was going to be cared for. I argue differently. Mary was human and a mother. Flesh gets in our way and being a loving mother brings on a world of concerns that others could never know. She had to be concerned about how she was going to face each day, plus concern for the things that her son was to face.
Mary was on display almost as much as Jesus. Imagine the tongues wagging at the town square when Mary lost her cool or displayed the slightest bit of doubt. What did other women (and men) say if she and Joseph had a disagreement? It must have been a huge burden for her to carry to be an example for every other woman. Or did the other women comment about how easy Mary had it because her son is "perfect"?
How many parents could live with each day of their child's life knowing that their baby was sent to Earth for the purpose of dying? I know that many of us believe that we are placed here for a purpose...how many of us face each day knowing that our purpose/our child's purpose is simply to die?
I have so many more questions but...