If you aren't doing the Lupron protocol, you should now be adding ganirelix to slow down the follicles. Your estrogen should be maybe 1200 today.
Follicles grow 1 - 1.5 per day. Also, they continue growth AFTER you trigger, so even if they trigger you Fri pm for a Sun a.m retrieval, you are still growing for the 2 days between Fri a.m. monitoring and Sun a.m. retrieval.
Yes, I've stimmed up to 12.