After Time Travel, I Became a Passer-By Single Mother

Ahhhhhhhh! ! ! I was single for 26 years, how could I travel through time and become a single mother? Oh, she's not a single mother, she's just a mistress, and an abandoned mistress! ! ! Have you made a mistake? No matter how bad someone else travels through time, she is still a supporting actress. How come she ends up here and becomes a passerby? How do I go about this plot? Tell me how? Purpose: Passerby's account of the rise of a single mother