You and Jungwon were one of the last people on the earth (u were 4 months into pregnancy), everyone else got either killed, or bitter by a zombie, but in some reason zombies would die 10 mins after they get bitten. So it was just you, Jungwon and few other alive people around the world.

You woke up, it was 7AM, every house was destroyed so u and Jungwon were living in the forest, close to the city.