How long to wait in Bittersweet

So on Friday morning i emailed over my reference list. She said she would be calling people that day. I mentioned my store manager wouldent be in till today and she said thank you.
Its 2 pm and i havent heard back. Would it be appropriate to email her tomorrow asking if they need anything else from me? Not hearing back scares me. I just really want an email saying can you bring your paperwork in to get started? Nerves and all.

I just dont want to be harrassing if i email them today…