Yes. There's nothing stopping you from announcing in a press conference that you intend to prorogue two weeks hence or three weeks hence. There's nothing stopping you from doing that. In fact, there's nothing to prevent you from reversing that three weeks later, saying, “We don't need to do this now.” There's nothing wrong with that, but I would agree with my colleague. A six-week prorogation is quite unusual. It was a significant length of time.
On February 18th, 2021. See this statement in context.