I sometimes do get it, usually it's white or clear, but when it dries out on my panties it is yellowish and I'm all like wait was it yellow or white when it wasn't dried out.. I heard yellowish discharge may be an infection but also heard it's common and nothing to worry about. I don't think there is something that may caused an infection, I had it before  I started being sexually active a month ago and I haven't done it unprotected. I don't get it often, maybe like once a month or even less than that. So I'm just wondering is it normal or could it be an infection?