Ok i am going crazy trying to find/remember this Stony fic. Tony woke up one day in a woman's body, but there was a time limit to it, and then he and Steve hooked up (possibly for the novelty, bc Tony wanted to know what it was like?) And then Tony got knocked up. And I believe it was part of a series where Tony swapped genders more than once and there may have been time travel involved later on? I swear the author's username was a variation of georgia girl or something similar but I can't find them :(
Sounds like you're looking for "Sing The Body Electric" by georgygirl, part of their Play Your Love Songs All Night Long For Me series. The writer has since deleted their works, sorry friend.














