Poop Talk πŸ˜…πŸ’©

This is my first pregnancy and I'm 7 weeks today. I have a healthy diet which hasn't change since finding out I was pregnant. But... my poop is ALWAYS mushy and green and it smells like alfalfa 😢 Also, if this is needed info I have lost almost 10 pounds and only get nauseous but not to the point of puking. Is this normal for the consistency to change cause your baby needs nutrients from you or is this weird?