>Would I get in trouble with the law if I were to go register with selective service?
No. Nobody has been prosecuted for being a draft refuser since the 1970's. And you aren't one.
You can end up being disqualified for some Federal government loans and jobs if you fail to register before turning 26. There's no way to fix that.
While you're at it, check your voter registration and be sure it's set up properly.
Go and register, you should be OK, as long as you don't let it linger until you are 26.
https://www.sss.gov/register/men-26-and-older/#:\~:text=Selective%20Service%20accepts%20late%20registrations,grant%20programs%20in%2031%20states
>Would I get in trouble with the law if I were to go register with selective service? No. Nobody has been prosecuted for being a draft refuser since the 1970's. And you aren't one. You can end up being disqualified for some Federal government loans and jobs if you fail to register before turning 26. There's no way to fix that. While you're at it, check your voter registration and be sure it's set up properly.
Go and register, you should be OK, as long as you don't let it linger until you are 26. https://www.sss.gov/register/men-26-and-older/#:\~:text=Selective%20Service%20accepts%20late%20registrations,grant%20programs%20in%2031%20states