Can I wear 16 gauge earrings in my unstretched piercings?

I want to buy some cute spiral earrings I found that are 16 gauge. My earlobe piercings are not stretched. I'm guessing 18 gauge? I got them pierced at a legit shop and not with a piercing gun. Anyway, will I need to stretch the holes to fit 16 gauge earrings? I don't really want to go through any pain. Also will I have any problems wearing my normal earrings again if I do wear the 16 gauge earrings?