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?


What can I do to prevent vaginal dryness during sex?

My problem is about vaginal dryness. I am an otherwise healthy twenty-one-year-old female, but cannot seem to get wet enough for pleasurable sex with my husband. We both get sore afterwards and I feel like I am not "performing" much like I would imagine a man would feel if he couldn't get an erection. Here's the thing, my husband doesn't want me to use artificial lubricants. Honestly I don't either. Are there any alternatives to K-Y? Is dehydration or draining enough fluids a factor? Any info would be of much help. Thanks so much.