Woohoo! I can't remember exactly how Carmen's eggs grew (been a while and a lot of other eggs since I saw any from her!)--some grow a lot and some don't seem to grow that much before them hatch. Since she is laying I'm guessing she is still retaining sperm although some females will lay a few clutches in the spring when it starts to warm up and they are ready to go again.

Most of the time if the eggs aren't fertile one or both of them will mold or collapse early on. I've had a few instances where one of the two never did mold or look bad on the outside after 70+ days, but I knew from candling them that they were infertile. Get a mini flash light or a pen light and candle those babies!