When Glee Season 5 premieres on Thursday, September 26, one McKinley student will not be in attendance. For those hoping to see Heather Morris donning her red Cheerios uniform in the choir room this season, we regret to inform you that Brittany S. Pierce will not be back for Glee’s fifth season.

In the Season 4 finale “super senior” Brittany was accepted into MIT early (because she’s apparently a genius), and left Lima, Ohio to become a lady of Cambridge. (We know, Santana fans. We’re crying into our fondue pot as we type.)  

Why Heather Morris depart the series so suddenly? She’s pregnant! Heather is currently pregnant with her first child, and she’s reportedly due sometime in October. While this is an exciting time for Heather, we’re really going to miss Brittany and her filterless humor.

Being a new mom doesn’t leave much time for guest appearances on Glee, but since the second half of Season 5 won’t begin airing until Spring of 2014, we’re still holding out hope that Brittany will make one final appearance on the series. But we’d completely understand if she was too busy studying quantum mechanics to show up at Nationals.  

Are you sad Brittany is going to be MIA this season, Gleeks? Sound off in the comments!

Catch the Season 5 premiere of Glee on Thursday, September 26, 2013, at 9 p.m. ET on FOX.

Crystal Bell is an editor at Wetpaint Entertainment and our resident fangirl for all things Pretty Little Liars, The Vampire Diaries, Game of Thrones, and Glee Follow her on Twitter and Google+!