Induction question: please answer if you can

Ki

I scheduled my 39th week induction today. I was given the options of midnight, 5am or 8am. I chose 8am. I was told someone will call me to confirm that, that time is available. If it’s not will they schedule me for a different timeframe that same day (upon room availability of course) or will it automatically be pushed back to the following day? FTM so idk if those three timeframes are the only times they admit ppl for induction in a day 🤔