I had my second appointment today. They did an ultrasound since we didn't see anything on the 1st one they did because it was too early. By LMP I should be 7 weeks, but I ovulated on day 17 or 18 of my cycle. baby only measured 6w1d. She said there is an error of up to 5 days this early and that combined with my late ovulation explained it and not to worry. I did get to see the hearbeat She changed my EDD from April 15 to April 21 based on the ultrasound.