Is this a yeast infection?

Kinda embarrassing to ask but can't find much online. on google it said that a yeast infection is odorless, white, and the consistency of cottage cheese. Usually my discharge is clear or a little white but just now it was pure white. It didn't smell and it was regular consistency, not like cottage cheese. Wasn't irritating either. Extra info: I had my period 2 weeks ago, I'm 20, and I'm std free.