First IUI this cycle

Hi! I'm 27, SO is 29 and we are about to start out first IUI cycle. I have PCOS and SO got 29% motility so I need to be stimulated to O and he needs to be washed to make his guys less lazy lol I've done my first cycle with Femara in October and O'ed but started spotting 5 days before period for 4 days and today supposed to be cd1 and spotting has returned so I'm counting this as cd1 and having my appointment this Fri, Oct 23 to get the process rolling. With all this spotting and my cycle being irregular I'm worried I've missed the cd1 but I guess I'll know on Friday.