We put a rooster with our hens mid-January. We kept eggs and incubated. About 36 in all inside a 48 egg incubator. One of these: We put this egg in there 01.23.2015 and I just cracked it open today, 02.16.2015. It had gone too long and I wondered what happened. We put the eggs in fat side down!! So, it obviously was fertilized and grew. Did we kill the chicken by putting the pat side down? There were four like this. Three are still incubating. This was the one that I opened, obviously. Also, out of all, there were about a dozen that started to grow and were about the size of a lima bean... but then stopped. The rest weren't fertilized which we expected as the rooster had only been in there a couple of days. Suggestions, thoughts and advice are all welcome!!!