I'm in that boat too! We got our first chicks from the feed store in May before I found mail order sexed chicks, that you could get in 5s. Then it started looking like most of my chicks were going to be roosters, and we figured we'd need at least 3-4 in the coop over the winter to keep warm (hey, it made a good argument). Now 6 more babies will be born 8/18! And then I'll have to keep them in the house longer so they are at least 8 weeks old before running with however many of the originals are left! Now that we've ordered, of course, it looks like at least 3 of the chicks will be pullets after all. My chicks are what, 12 weeks old, and I STILL can't tell!