No Sac or Fetal Pole should be 5 + 5 by LMP, 5 + 3 by ovulation

Went for a private US today as I started spotting. Should be 5 + 5 by LMP, 5 + 3 by ovulation. I have had strong positives with good progression, however the tech says there is no sac and no fetal pole. Besides an ectopic has anyone ever experienced anything like this before? Had bloodwork done this morning. I guess I am waiting either for pain from an ectopic or for my period to start.