Long ago, someone here on TMC suggested that when Musk gives a date, what he really means is "not before" that date. This has proven to be good advice.
So, in this case, "this weekend" means "not before this weekend is over". So, yes Monday is possible, but so is "or later."
Like waiting for FSD to proceed after a stop sign, it takes patience.
By the way, GottaGo, when did you first get a software update which included FSD? What version, do you know? If you subscribe to TeslaFi, the Fleet page has a link to your update history.