When do you get time for you? I used to be a foster parent and I loved all the kids and how busy we were all the time ... right up until the day I realized I was nothing more than a doormat for everyone els and couldn't even get time to take a shower without three people knocking to ask some mundane question. Adding chickens to the mix would have been suicidal. They don't take care of themselves and you already have enough let alone a second baby coming. I would wait another year ...