Romanoffs Daughter

Natasha Romanoff was artificially inseminated in the Red Room as a mission from Dreykov at age fifteen to give birth to a child who will be a better assasin than her. When Dreykov was ready to take y/n at age 2, Natasha escaped with her and left for New York where she got on S.H.E.I.L.D.s radar and got taken in by Clint Barton, for the rest of her life she was an avenger and was watching y/n grow up, things were easy going untill y/n was diagnosed with an illness that changed her life, could things ever be normal again?