how long can you have a duck egg out before you put it i the incubator? have one that i had one on the counter for about 3 weeks before putting it in the bator. is that too long, or should i just throw it out? i candeled it today, has been in for 3 days now, looks like i see some veins. not for sure if it is possible. if the egg was out too long or not. please anyone help!!!