I am a little confused... I went to the ob/gyn yesterday for an ultrasound. I have a cyst ob my left ovary. In the ultrasound the tech said my endometrium is of normal thickness... but I think it should be thinning out by now, since I am due in four days. Also, my breasts DON'T hurt like they usually do before every period and ummm... my bowel habits are a bit off. I took the test that lets you find out '6 days sooner', and it was negative. Any thoughts?