Touring the Hospital

My husband works a job at a 24 hour company. His hours are all over the place and he is usually heading to work before the sun comes up and coming home late at night. He is taking a week of vacation in March while I am off of work so we can spend spring break with his daughter as a family. I want to tour the hospital that I will be delivering our baby at with him and it seems like this will be the only for sure time that we could go together. I will only be 15 weeks it too soon to call the hospital to schedule my tour? He won't use any more vacation time until I go into labor.