Occurs in 20-40% of 1st trimester pregnancies
Once IUP is confirmed by ultrasound no utility in obtaining B-hCG
US
Do not use hCG to determine whether ultrasound should be obtained
Do not use hCG to determine whether ultrasound should be obtained
Vaginal bleeding in pregnancy 
Ectopic pregnancy
Abdominal pain in pregnancy
Subchorionic hematoma
Comorbid diseases in pregnancy
First Trimester Abortion
Nonpregnant vaginal bleeding
Complete Abortion