I completely understand the "cold feet" feeling. I started with 6 chickens, 3 hens and 3 roos that were free.
I now have 14 laying "pullets"
3 roosters
2 bantam roos
5 bantam hens
13 barnyard mix chicks
3 French Black Copper Marans chicks
1 silkie chick
1 silkie due to hatch in the next couple days
and 4 more silkies due to hatch in 19 days.
I also have 6 pigeons
a Mutant Melanistic Pheasant.
and A ringneck mix hen pheasant
Be careful with "chicken math" you will find out that you CAN go beyond your means very quickly if you adopt or buy more than you can keep, I have about hit my limit, I have plenty of space and the money to feed them but I really dont need 2+ dozen eggs a day. I have begun selling eggs to friends and family and it pays for the food mostly so thats a plus.
I am just starting to incubate, my first "hatch" was 40 eggs placed and 33 hatched lol
If you get into "trouble" then you can always post your extras on Craigslist farm and garden section or right here on BYC