Probably ought to move this post, but I have no clue how to do that. In the meantime, you definitely do not have to tell your whole story at your first appointment with the therapist. In fact, you probably won't have time
It's cool to wait until a future appointment to share the dark with your t, and also ok to wait to tell hubby about it all.
Depending on the type of therapy you are doing, you may not need to ever tell about the actual event. EMDR and Somatic Experiencing both do not require you to tell what happened. With EMDR you start with something that triggers you, and then let your mind wander. It sounds strange but it does work. With Somatic Experiencing you find where in your body the memory is stored, and then work on releasing the trauma-but you never have to dredge up the traumatic experience.