Okay, So Just Recently, I Sneaked Out Of My House With My Boyfriend And Well, Things Got Out Of Hand, And He Tried To Stick His Thing In Me... I Yelled Cause It Hurt Really Bad, So He Didn't Go ALL THE WAY IN... He Fingered Me And We Kissed, But I Felt Really Bad And Nauseas... Did I Lose My Virginity?

That's more something that you'd have to decide yourself. It's a moral thing, you know? Most people would consider it no, you're not a virgin anymore, but like I said, its what feels right for you.

Well technically you had sex. Kind of...
Also some people consider braking the hymen as an act of losing virginity. I hope you know what a hymen is. Did you do it or not?
I hope you used condom at least. Unsafe sex can lead to pregnancy and STD's.

I agree, it really is up to you how you feel about it. Losing your virginity in all honesty usually isn't the way you see it in movies where he takes you to his parents lake house after prom and there are candles everywhere. Usually it is more like how it happened to you. But if you don't want that to be your 'first time' then it doesn't have to be. And it sounds like you didn't really feel comfortable and enjoy it, so don't feel you need to do it again, at least not for a while.