In addition, crayfish contains more bacteria, germs and parasites. If it is not processed thoroughly, it is easy to hurt pregnant women and fetuses, so pregnant women had better not eat crayfish.
The water source of artificially cultured crayfish is guaranteed, but the market is likely to be mixed with non-cultured crayfish, so it is not recommended for pregnant women to eat. If you want to eat, you should also choose artificially cultured crayfish.