New Vagine The Entrance To My Vagine Turned White, And Its Also Itchy... Is This A Yeast Infection?

The entrance to my Vagine turned white, and its also itchy... Is this a yeast infection? - new vagine

I am young and havent had sex before, but I'm ashamed to say something to my parents because I recently got a new BF ... and will probably think I have to believe something is wrong with him and me when I say that yet.
Is this serious?