Yeah, we didn't think it was possible either ... but Bryce Harper's life keeps on gettin' better -- the Philadelphia Phillies' $330 MILLION man just announced he's havin' a baby boy!!!
"Philly raised little man will be!" Harper said Monday.
Bryce has had the best month of his baseball career BY FAR ... 'cause after signing a 13-year, $330 million deal with Philly, he launched two massive home runs on opening weekend.
But now, dude has even MORE to celebrate ... 'cause he says a baby boy with his wife, Kay Harper, is on the way -- and she says the kid will be in a Phillies uniform by THIS summer!