"Dear Baby Iman," she captioned the photo, "Thank you for this snap back in 6 days... I love you my darling."
As if the transformation wasn't mind-boggling enough, Taylor cleverly added "#AintNoGymBih" to the post, hinting that her post-baby bod came without the help of a gym. (What?! How?! Tell us your secrets!)
To be fair, Taylor did manage to stay extremely fit during her pregnancy. She shared this prenatal shot just last week.
"Not knowing I was in labor until I felt her head...it took two ten count pushes with my fiancé playing Dr and she entered this world into his bare hands," Taylor wrote on Instagram. "Eyes full of tears and barely able to speak to the emergency operator @imanshumpert tied a pair of red headphones around the umbilical cord and the ambulance made there [sic] grand entrance 5 min later."
Congratulations to the happy family! If you can't get enough celebrity baby news, see which stars are expecting in 2016 in the video below.