I am glad you posted this because I'm doing the same exact thing! Just put them in tonight! I only put in 5 eggs. They are from my hens but this is the first time I've tried to hatch any. If it works I'll go another batch. My goal is to end up with 4 more hens, but even if 3 if those hatch, 1 or 2 could be roosters. I don't want to keep more than 1 rooster at a time so our current rooster might become dinner at some point. He attacked my son the other day. Getting meaner with age!