I had my first ultrasound today. The office estimated from my LMP that I am 7 wks 5 days. I have long cycles so I think I am really 5 wks and 5 days. Turns out I could be even earlier because they found nothing. They even wrote "empty uterus" on the screen. Anyone else have a similar experience? I'm trying not to worry. I am going to get blood work tomorrow. Any advice?