You're Dr. Ethan Choi's younger sister.

One day you had a car accident. The ambulance soon arrives at the hospital with you on the stretcher. They rush you inside. Dr. Natalie Manning and Dr. Will Halstead immediately get concerned, as they see that you're Ethan's younger sister. Dr. Ethan Choi arrives soon after and is shocked.

The bad thing is that you're also heavily pregnant.

You get put on a hospital bed in a room as they quickly check your vitals and stabilize you, treating you.