according to the ultrasound at my doctor’s i’m 8 weeks today. i came to the ER for vaginal spotting and their machine is measuring me at 7 weeks 3 days. doctor doesn’t seem concerned and says it could just be the difference in machines but it has me so worried. also there’s blood in my uterus but they can’t tell why? i’m a mess because i’ve had two other miscarriages and any sign of blood makes me so worried. any encouragement would be appreciated