Is seaweed safe?

harley ♊ 🥀⭐🦋♥🌙 • I`m 28 year old mother and who have a 8 year old. And number 2 own it's way!

I ate it before when i got pregnant. And i didn't feel sick then. And yes the fish is cook. I won't eat it raw. I just wondering about seaweed.