On Tuesday's episode of Chicago Med, it's finally Natalie's (Torrey De Vitto) big day: Her baby is on the way! But not everyone at the hospital is in a celebratory mood. After Dr. Manning goes into labor in the middle of a shift, Dr. Reese (Rachel DiPillo) is left to fend for herself while dealing with a heartbreaking case.

Upon learning that a young boy has a fatal condition (and that his brother may have it as well), Reese is tasked with breaking the news to the children's parents. She turns to Dr. Charles (Oliver Platt) for advice, which he gives her - along with a tough lesson.

Check out an exclusive sneak peek of Tuesday's episode below:

Chicago Med airs Tuesdays at 9/8c on NBC.