sexually confused

So basically I've always admired females but now that I've gotten older(I'm 17) I've started to become confused if I'm attracted to women. One time I did have a sex dream with a girl eating me out. I've never done anything with a girl and I've just started my first relationship with my boyfriend who I like but things haven't gotten very far. I'm just not sure if my thoughts around women are sexual/romantic attraction. 
Any advice would be very helpful