I got pregnant by a guy who was my boyfriend at the time, we ended up breaking up and I got back with my ex, my ex has taken full custody of my daughter and is practically his own. He was there since I was 2 months pregnant and was my boyfriend for 6 years prior, my daughter ended up getting his last name.

I just found out my daughters biological father is trying to get married and come to this country (USA) because he's from Argentina and has no Visa. Can he come to this country once he does and try to take her away? Or well the court be on my side since he has never even asked about my daughter and my husband has been the FULL provider of her

Please let me know. I'm kind of freaking out of the thought of him coming here and trying something.

Was it wrong of me for giving my daughter my husbands last name?