What CD did you have your IUI ?

Jo • Both 41...TTC for too long
Just curious ladies. And a bit nervous. 
​Starting clomid and iui is scheduled for cd11 Friday with sonogram and nurse said if we don't do it that day then will do iui that Monday cd14! 
​I'm worried it'll be either too early or too late?! Any words of wisdom or encouragement ?! Thanks