Ok, so I have eggs in the bator, today is day 15! my homemade incubator has 2 light bulbs in it. Got up this morning about 6:15 and noticed 1 bulb out! Don't know how long it was out. Temp was down to about 88 degrees! I quickly put a new bulb in and the temp is back up . Are the eggs ok????? Never had this happen and again don't know how long the temp was down. Any advice would be great!