A weird topic?Definitely, yet one that would put an end to a headscratcher that often bothers me.
My guess is that an infant dragon would probably be as big as your average house cat if you take the limitations and issues of eggs that are rather large.

It's born that big. It's depicted bigger then a human baby so likely about 10 - 12 foot tall, I'd say. Not as big as the "winter dragon in the game or those depicted in earlier games except Divine divinity's little dragon rider ones.

I'm not sure if that helps me to solve the unexplained lore details of the game , but your thoughts on this subject are appreciated. It's just the conundrum of egg size compared to that of an adult Female Lizard.

This is definitely a case of overanalyzing though I feel it is nessacery for us to fill in plotholes with our ideas. e.g. While the Red Prince - and - Princess both lived isolated lives as children, could it be possible that the Later's family was more loving than the Former's?