I think I have a crush

I think I have a crush on this girl in my class but I’ve been also thinking to myself that “do I rly have a crush on her tho?” Since I’ve never truly felt that heart throbbing feeling before, I also haven’t felt that towards this girl, but I also think that I do like her because when I’m near her I get a little nervous. Is it just admiration? Since I’ve felt the same way towards other people I’ve had a crush on, that administration feeling.