I have my very first broody hen. Her own last egg was laid the 18th of May, the last eggs we put under her was on May 20th for a total of 10 eggs. One broke last week, so now there are 9. I'm looking forward to this weekend - do I count the 21 days from the day of her last egg laid or ??? Trying really hard not to count the chicks before they hatch! I'm leaving her totally alone as I'm sure it would be best, but omgeee, I'm excited.