We are attempting to hatch rouen duck eggs for the first time and they are now at 30 days. We learned our thermometer was off and they have been in 98-100 degrees for 25 days. We increased the temp to 102 for the last five days and saw one egg move 2 days ago but nothing since then. Two eggs are starting to look transparent. I've candled them a couple of times this week and did not see any movement. Can anyone offer any advice?