TMI TTC All About Poop

My fiance and I were actively ttc this cycle. My fertile window was Oct 4-Oct 10. My period is due to start on Oct 23rd. I am too impatient to wait to test, so I tested today and it was negative which didn't surprise me any because I know it's too early anyways. The past couple of days I have had sore and tender breasts, pretty well constant nautious feeling, and 100% green poop!?!? I have never experienced green poop before. It has been that way for almost 3 days now. I don't take any prenatals or vitamins with iron, and I know that I haven't ate anything green... Has anyone else experienced this and found out they were pregnant?