according to my LMP I’m supposed to be 7 w 1 day .. I had an ultrasound yesterday and didn’t see anything in the Sac. Not even a yolk sac so the tech said I can still be early. On this app it says I’m supposed to be 6 w 1 day according to my LMP..but sac measured 6 w 2 days.. this was all Determined in the ER.. doc said to expect a miscarriage because I should be showing something in the gestational sack already? And he said I should be 8 weeks according to my LMP which i know is impossible to be 8 weeks rn.. OB originally said according to my LMP I should be 7 w 1 day... I’m so confused should I be expecting a MC...? I have an appointment Tuesday.. HCG is 38411..