Get a vasectomy.
If you already have a kid. Get one.
If you don't and you don't want any. Get one.
If you don't but you might want them later. Get one. They are easy to reverse.
If you don't want to be a selfish asshole who always puts the burden of birth control on your partner. Get one.
If you don't want to spend eighteen fucking years having your thirteenth amendment rights being suspended. Get one.
If you don't want to be stuck working under the table or subject to constant fines. Get one.
If you don't want to wind up getting ugly phone calls from state agencies or be looking over your shoulder for process servers. Get one.
If you don't want to turn your dick into a prison all the long years of you life. Get one.
They are an outpatient procedure.
They are cheap or even free through organizations like planned parenthood. You won't be less of a man, you will be a free man.
Get a fucking vasectomy!