Can you call the fertility clinic on a sunday?

KJ

Supposed to call fertility specialist on day 1 of my cycle (today) to set up first maintenance appt. for cycle day 2-5 (bloodwork & ultrasound).

Does anyone know if you are supposed to call the on-call physician on a Sunday to schedule, or just wait until Monday morning? (I was hoping to go in monday as i am off from work).

This will be our first round so just not sure what the right protocol is. Any advice is much appreciated!