John Gill Commentary Genesis 41:53

"And the seven years of plenty, that was in the land of Egypt, came to an end." — Genesis 41:53 (ASV)

And the seven years of plenteousness that were in the land of Egypt were ended . ] Perhaps quickly after the birth of Ephraim, Joseph's second son; since the account follows upon that, and it is certain that he was born before the years of famine began, (Genesis 41:50) ; some connect the words, "moreover when" the seven years of plenty were ended, then began, as follows, seven years of famine; these events were fulfilled just as Joseph had predicted.