Yes all eggs are supposed to sweat before hatching, but you have either missed the event (only several hours before releasing liquid) or the humidity was too low. THe liquid being released, you must remind yourself, will contain a small amount of the yolk in which the embryo was developing. In most cases the yolk is completely absorbed by the baby while the ebryonic fluids are released after pipping the egg (after sweating). One or two of your eggs may not need the rest of the yolk, or have come out of the egg the wrong way. The only way to find out if theyre okay or not is to wait. Don't help them hatch!
The eggs have probably hathed by now...this is a late reply but i replied cause no one else was replying.
The eggs being 7 months old suggest they are supposed to e hatching.
BTW....what species of eggs? you didnt specify
good luck!