Are these the signs of a yeast infection?

Hi. So I’m sorry for asking this, I’m 17 and haven’t gone to the gyno yet and I’m a little scared to ask my mom lol. Anyway I’m having moderate, not terrible itching in that area and some very thin white discharge but it isn’t clumpy like how it seems to be for other people. When I look at it I don’t really visually see anything but again there is some itching. Im slightly sexual active, I’ve been eaten out but that was a while ago, and this started happening after my boyfriend fingered me. My period is also supposed to start in about a week if that matters. I’d really appreciate any opinions or help. Thank you in advance.