When I got in engaged it was during the winter, so when my ring finger got sized it was during the colder months of the year. I know your fingers are smaller in cold weather and get a little bigger in warmer weather. Right now, and for the last few months, my ring has been comfortable. Loose enough that when I wiggle it over my knuckle I can get it off, but tight enough that it doesn't move around or would ever come close to falling off. However, I'm noticing that when I am warmer (warm day outside, after a workout, the heat in the apartment is high, etc) that my ring feels much tighter to the point where if I wanted to take it off I'd have to soap up my finger, and I can't twist it easily on my finger. The jeweler we got the ring from offers a complimentary first time resizing, so I'm trying to figure out if I should have it resized up half a size (from 5 1/2 to a 6). Have any of you experienced this? Any suggestions on what to do?