I was in a relationship with a Czech girl several years ago when we were both working in Russia. When I was transferred to another project back in the States, she and I broke up. A year ago I found out through a mutual friend that she'd moved to the U.S. with her son. The friend gave me my ex-girlfriend's phone number and address so I called her up just to say hi. The first thing she said to me was "We don't want to see you."
I tried to press for more detail about what that statement meant, but she wouldn't say anything else.
I ended up going through her city on business a couple of months after that and I swung by her apartment building. I didn't speak to her, but I did see her and her son leaving the building. He looks just like pictures of me when I was a kid. I found out through one of our old co-workers from Russia that her son was born six months after I came back to the States.
I tried calling my ex again and asked her for a straight answer and she told me to leave her alone, I don't have any parental rights and she's happy with the situation she has now.
I'm not trying to ruin her life, but I think, if I have a child, I should be part of his life; even if his mother hates me for reasons I can't begin to explain.
My question is this: DO I have any paternal rights in this case, especially since I'm an American citizen and she's not. She's not even here as a permanent resident. When her O-class visa runs out, she can probably go anywhere in the world she chooses.
I consulted with an attorney and he told me that there's not a lot the U.S. court system could do for me as she's Czech, the boy (if he's mine, and I presume he is) was conceived in Russia and, from the information I have, was born in Italy.
Does anyone have any advice on which country I'd need to seek legal assistance in, if I have any chance at all? What are the odds that I can mandate a paternity test and, of course pending the result, instate parental rights?
Additionally, she's presently residing in Boston and right now I'm in Atlanta for work, but I am based out my company's hq in Philadelphia.

