Ok I had one egg pip about 2 hours ago I just checked on eggs and the same egg has piped again. The first pip is at the top of egg in air cell the other one is in the middle of the egg lower then air cell. Has anyone had the happen before? Could this be twins? I locked down last night. I would candle to see but I have other eggs that have piped and don't want to open the incubator. Thanks!