Does it matter...

So I was supposed to call my doctor once my period started and it started on Friday evening so my office was closed. She's gonna have me do a 4th round of Clomid most likely and I usually take it on cycle day 3-7. But when I call in to my doctor on Monday that will be my cycle day 4. Do you think it's going to throw anything off track because I'm starting on cycle day 4 instead of cycle day 3? Would love to hear your input or any thoughts. Thank you in advance.