No it's not silly! Just simply ask if notifications are going to be sent around whatever date they should be sent. The day before we received ours I emailed her asking if they were still going to sending out admissions that week and she replied.
Don't feel like you're being annoying. Her job is an admissions advisor, it's her job to answer questions no matter how many come from one single person or many. I've sent her plenty of emails with questions, sometimes days in a row.