Should you see a fetal pole at 5 weeks 1 day?

At 5 weeks 5 days I had no fetal pole detected, just an empty sac. I had the same at 7.0 weeks. However, at 7.5 days a fetal pole and heartbeat could be seen. From talking to friends during the "waiting" time, it appears that most women do not see a fetal pole until about 6 weeks minimum.