Am I Legally Required To Continue Sending Financial Support For My Child Even If My Wife Blocked Me And Said, "we Don't Need Your Help."?

Long story short, my wife went back to her home country along with my daughter, blocked me off on every social media and contact, even changing her phone number/email. I was sending financial support before, but after some talking, she ended up saying through text, "We don't need your help." And then that's when the blocking started.

It didn't take long until I found out that she moved places again, but it's not specified exactly where.

I was looking online about legal obligations for child support and it's saying that I still need to send money even though there's no divorce and no court order.

Is that true? I'm afraid of not sending money and then one day, my wife might file a case against me for years and years of not sending money, which will greatly affect me financially if that were to ever happen.

I really cannot find where they are right now and I have no idea on how to locate them. Even her own relatives are completely ignoring me despite making new accounts on social media to message them.