Rumors began circling that that Krasinskis were expecting baby No. 2 when Blunt was spotted on set of her next film The Girl on the Train in an oversized coat. Krasinski was last spotted in Park City, Utah at Sundance promoting his new film The Hollars.
The couple's first child, Hazel, turns 2 years old next month. They married in 2010 after dating for two years. Blunt's reps did not confirm how far along she is, but we'll be on the lookout for those Instagram pics!
WATCH: John Krasinski and Emily Blunt are expecting Baby No. 2!