Quote Originally Posted by Евгения(Женя)
I agree. But I am confused a little. My mother tongue is Russian, its the first langauge I ever understood, or spoke. But I moved to the US and forgot it, and now I speak English at home with my uncle(I live with my three sisters, adoptive uncle, adoptive cousin, and adoptive aunt), but Russian would still be my native langauge right? Because its the first language I ever understood?
Why do those Eastern European types always makes things so complicated...

In your case, your native language is probably English, then. It's the language in which you can most easily express yourself and did not take much effort to learn. The language that comes "naturally" to you. It would be possible to have two native languages, I suppose. It's not uncommon for kids to be raised in a bi-lingual environment.