I really just want to put this out there for you, as a former ovo-lacto veg, myself -
I never thought that Primal/paleo eating could be "ethical" in any way, until I read arguments here that debated this very topic, and what I heard was, that if you are going to end the life of an animal to feed yourself, ethics enters when you choose happy animals raised in small numbers on small local farms, eating what they were meant to eat for their entire lifetimes, and then consuming everything that is edible to eat on it. Saying grace helps, too.
IMHO, there is no better way to honor the animal you use for food than by supporting humane husbandry, wasting nothing, and expressing gratitude, even though I know you aren't going to buy a cow just yet. I only went meat-eating when, during my third pregnancy, nothing would go down and stay down except meat, and then I had a choice to make...
But in short, ovo-pesca is a good choice.
I have a mantra that I have spouted for years... "If I eat right, I feel right. If I feel right, I exercise right. If I exercise right, I think right. If I think right, I eat right..." Phil-SC