Sons dad is scaring me

So I reached out to my son's dad and told him about him. That he's here he exists.

And he's so aggressive out the gate, belittling me and expecting me to take and show him respect. He keeps threatening he's gonna take him from me.

I was so nice to this man and he won't listen or work with me.

I remember him saying just now that he's more powerful than the government and no one can stop him and he's coming for our baby.

I'm scared.

He isn't on the birth certificate.

Idk why I reached out. Well I did bc I thought my son needed to know his dad and well he's crazy.

Right now he has no rights but he seems so unstable. He wants him and willing to fight.

What can I do now?

@ Mandi he was carted off to jail before I knew I was pregnant. I get he's mad but even he said he had his own issues with some weirdo stalking him and breaking into his house ect. Crazy shit. It's was alot. Like I said it was before I knew.