Aguila Blanca, it depends where you live.
Where I live, the forcible entry alone justifies a shooting, as it is one of the specifically listed justifications. Intruder doesn't need to be armed.
That said, I'm not into the shoot first and identify the threat later mindset. And I think the OP handled things just fine.
One thing the OP didn't specifically state in the thread, though: Did you describe yourself to the dispatcher, to help the police recognize you if they had arrived after trouble started?