I have the same issue, but I've never heard it called "twisted" before, only retroverted/anteflexed (or maybe it was retroflexed/anteverted???). Mine is the same way--the back is facing the front, and vice-versa. I first found out when I was a teenager, and every time a doc/ NP has made the observation, I've asked if it will likely cause any problems one day.
I was told once to expect a lot of back labor, but I've never been told it would cause problems with conception/carrying/delivery. My mother had the same thing, and when she was getting married, her doc told her it was so bad she would never be able to conceive! He was wrong, obviously!
As for the pelvic pain, having a uterus tipped in this way can cause pain during intimacy in certain positions, so maybe that has something to do with it, esp. if this is new for you.
"Twisted" doesn't sound like the right term to me, it sounds rather alarmist!