I don't have a clue, but I hope it is a very short delay...with the follicles all getting ready it doesn't sound like a bad thing. I think not being suppressed completely so early on isn't a big deal, because I think they are checking you a little earlier maybe than most REs would. I started Lupron one day after you and I don't have my suppression check until next Friday! Last time I was on the Lupron for 10 days before they checked me.
It doesn't sound like a big deal at all and I wouldn't worry. Your antral follicle count sounds great I bet you are getting a BFP out of this cycle!