Clomid question

My doctor put me on provera to start my period and wants me to call her the scond I start my period so we can start me on clomid this cycle. She was very clear that she wanted to know the day I start bleeding. The thing is I just did. The office is closed all day tommorow. And I'm just wondering if this has happened to anyone else? If so were you still able to begin clomid?