Diagnosis of Early pregnancy 2. Morning sickness 1) Fatigue, swirling, nausea and vomiting(the 6 h week↑→the12 th week↓) 2) Hyperemesis gravidarum(妊娠剧吐): protracted vomiting necessitating hospitalization 3) Causes: HCG, delayed gastric emptying(P tDiagnosis of Early Pregnancy 2. Morning sickness 1) Fatigue, swirling, nausea and vomiting (the 6 th week↑ → the 12th week↓ ). 2) Hyperemesis gravidarum (妊娠剧吐): protracted vomiting necessitating hospitalization. 3) Causes: HCG, delayed gastric emptying(P↑ )