Ring resizing

Hi everyone! I have a question about getting my ering resized. It is a little too big, it spins around on my finger and if i wash my hands it becomes very loose. I know i need it resized and am going to the jeweler later this week. I spoke with a woman I babysit for and she mentioned just trying on some wedding bands while I am there along with my ering to get the proper fit. She said her ering fit differently at different parts of her finger so when she had her bands added she had to get the ering resized again. Has anyone had this happen, is this a good suggestion? I plan on talking to the jeweler about this as well, and I want to look at bands anayway because I am excited. Just curious if anyone has any thoughts or experiences with this? Thanks!