A14-year-old, in the second trimester of pregnancy, has been hiding the pregnancy from her parents, best thing to say to the parent

I mean, it depends on how the character feels about the pregnancy, and how the character's parents feel about pregnancy. Maybe have her tell them one at a time so you can explain the exchange more in depth for each character, maybe have her tell them at the same time, it depends on your style of writing really, what approach you want to take. Sad, Happy, Scary, Angry, etc. It really depends on you, and what approach you want to take.