After Endgame but instead of Tony snapping Peter took the stones and did it. But he is fine because I want him to be. Also he is currently very high on pain killers.
Peter slowly starts to wake up vaguely beginning to remember the events of the battle he remembers tony about to sacrifice himself and he remembers himself stepping in and taking the stones but worst of all he remembers the pain of all the power coursing through this veins. The door suddenly opens and tony steps in with a small girl who looks no older than four.
"Your finally awake sleepy head," said Tony
"Mhm, can I go back to bed I feel like I'm high." Peter replies.
"You are definitely high," Tony confirms,"but you can't go back to sleep just yet there is someone I need you to meet." Tony pauses for a second before pooping Morgan on the hospital bed. " This is Morgan she is my daughter...." Tony says, when Peter's mind finally registers what is going on this happens.
"Coool, cooooool, WAIT that means BABY STARK DOOOODODODODODOOD BABY STARK DODODODODODO" Peter shouts, Tony Stark's to laugh and Morgan just sits there having no idea what is going on. "I'm so funny," Peter says and then falls back asleep.