I am (by my calculations) 7 weeks 4 days pregnant with our first baby. I went from my first ultrasound yersterday. In the ultrasound they confirmed im pregnant and eveything is in the right place but they could only see the gestational sac and no fetus. She measured by gestational sac and said im only 6 weeks and 2 day and it may be too early. Has anyone else had this happen?? im confused because my date should be right, i always have a 28 day cycle and ovulate on day 14 or 15 which definatly happened because i did a ovulation prediction test. We had sex on day 14, 15 and 16. sooooo how can i be a week behind????