I'm 18 and I am still not %100 sure of my orientation?

don't rush it. you will find love when you are ready. my friend is gay and she didn't realise it until she was 31. so for now you are probably straight with bi tendencies.

You're the only one who can know what you feel, but I would possibly describe you as bi-curious. Bi-curious is usually a term for people who aren't sure if they are straight or not, and might be open to experimenting. However, it is not a permanent label, simply one of exploration.

It's also usually used when the person might be straight or might not be, and you don't sound straight to me. For one, straight people generally don't spend this much time thinking about whether they might not be straight. Even more to the point, you've felt attracted to girls.

So, you might decide eventually that you identify as bi, or maybe you would prefer the term queer. It's fine if feel sexually attracted to women without any romantic attraction to them. Also keep in mind that sexuality is often fluid, and what you feel might change with time or by meeting a particular person.

You're not late at all figuring yourself out. Lots of people don't discover they're queer until they are middle aged! Let it flow as it will, and don't worry if you end up having to change your label five hundred times.

If you're not opposed, if you'd rather have sex with a girl than not have any sex, you're bisexual. You're just a hetero leaning bisexual. There's plenty of heteroromantic or homoromantic bisexuals, we don't all want every gender equally or in the same way. The only thing that ties all bisexuals together is that unlike the monosexuals they don't lack an attraction to any gender.

I would say that you are bi. You are only 18, you are still really young, so don't think that you have to make a choice about this right now. Some people don't even figure this out until they are in their 40s or 50s.