My poop is really really green, and i was thinking it could be from the prenatal vitamins. am i right? or is something wrong?

Green stool color: The color of stool varies with foods, speed of emptying of the GI tract, medications ; supplements ingested, gut flora (unique for each individual), additives (like blood), subtractions (like absent bile), infection, inflammation, ; other factors. Consider what you ate in the last few days, but if greenish color is unusual for you ; persists or is accompanied by other symptoms, see your doctor.