Probably,
It certainly sounds as though you didn't do anything wrong at all.
Day 52 might have been a tad early but certainly not disasterously so. I'd probably just keep a carefull eye on it to see if it changes.
If the fluid in the eggs starts forming a skin or you can see fungus etc start to grow you can spray to try and remove it or use a q-tip for bigger pieces.
Did you leave the v shaped section open or close it back over?
dr del