What Does A Lump On Clitoris Indicate?

Over the weekend I had a pea sized hard lump appear to the left of my clitiris. It is beneath the skin, has no noticable black or white head on top of the skin, and I cannot pinch the skin on top without grabbing the lump. Over the last two days, the lump has grown in size to a small grape. It only hurts a little if I push directly on it. I have gotten lumps/abscesses underneath my armpits before, but never in my vagina. I fully shave down there, and I m beginning my period as well if that helps. What is it? Thank you.