Acts 11:9

But. voice answered the second time out of heaven, What God hath cleansed, make not thou common. And this was done thrice: and all were drawn up again into heaven. And behold, forthwith three men stood before the house in which we were, having been sent from Caesarea unto me" "Having been sent" Peter is noting that he had not been the cause for any of these events. He had not been even thinking about converting uncircumcised Gentiles. All these events are happening, and he simply found himself right smack in the middle.