GRIND DOESN'T STOP
Brittany Mahomes isn't letting her "hardest" pregnancy keep her away from the gym ... 'cause the Kansas City Chiefs superstar's wife is still working out in full force!!
Mahomes -- who's married to Patrick Mahomes -- shared her exercise session at the gym on Instagram ... weeks after she revealed she was pregnant with her third child.
The 28-year-old showcased her full-body sweat sesh ... and she looks good doing it, proving she wasn't playing around when it came to perfecting her Sports Illustrated Swimsuit bod.