Hey girl,
Well this happened to me and now I'm about 1.5 months into my nose piercing. I suggest you buy a bigger gauge like an 18g but make sure you don't get any type of silver. When you buy it just ask for an 18g in either surgical steel, glass or bioflex/bioplast. This should only be temporarily ,til it heals unless you want to stretch the hole which is what I'm going to do :)
Hope I Helped
xxo :)