Went in for our first ultrasound today... based on ovulation I figured I was about 6 weeks 5 days (I got my positive ovulation test on January 20th). The gestational sac only measured 5 weeks 4 days today. She did find a heartbeat finally (111 bpm), which is what I wanted to see. I don't know why I'm being so emotional about the gestational age being about a week off.... stupid hormones!