Should I get a new IUD with each new sexual partner?

I recently had an IUD inserted. I'm not currently having sex, but wanted to be prepared as I am seeing someone who I may become sexually involved with.

My concern is I was told the IUD would need to be removed if I had sex with a partner and then changed partners later. This IUD is a 5-year IUD and the cost was quite a bit. If I have sex now and then stop for a year (or any period of time) and was to become sexually involved again with another partner, why would it need to be removed? If STDs are not an issue, does it still need to be removed?


Why have I started fantasizing about women when I've only ever liked men?

I have always been attracted to men, and have only been with men. I am currently happily engaged to a man, and have no doubts about our relationship. However, I've discovered over the past couple of years (even when I was with my previous boyfriend) that I do not like porn with men in it. I like lesbian porn! And anytime I've masturbated I've fantasized about women (never one that I know or have seen.) It's made me very uncomfortable, finally admitting it to myself. I do remember when I was in 7th grade there was a new girl at our school. When she got a boyfriend I was very jealous; I just assumed it was because she was new and I didn't have all her attention *ha* Is this normal? Am I out of my mind!?