See Vaginal Bleed Pregnant (less than 20wks)
Type and Screen/ABO
Hemoglobin
Transvaginal or transabdominal ultrasoundultrasound finding:
+IUP = threatened abortion
Ectopic ruled-out unless on fertility drugs
Empty uterus + free fluid/adnexal mass = Ectopic
Empty uterus + no free fluid / no mass
Beta-HCG:
>1,500 = Presumed ectopic
<1,500 = Indeterminate: follow serial B-HCG levels in 48hrs (if no peritonitis)
Increased >66% = normal IUP
Increased <66% = Ectopic
+IUP = threatened abortion
Ectopic ruled-out unless on fertility drugs
Empty uterus + free fluid/adnexal mass = Ectopic
Empty uterus + no free fluid / no mass
Beta-HCG:
>1,500 = Presumed ectopic
<1,500 = Indeterminate: follow serial B-HCG levels in 48hrs (if no peritonitis)
Increased >66% = normal IUP
Increased <66% = Ectopic
Ectopic ruled-out unless on fertility drugs
Beta-HCG:
>1,500 = Presumed ectopic
<1,500 = Indeterminate: follow serial B-HCG levels in 48hrs (if no peritonitis)
Increased >66% = normal IUP
Increased <66% = Ectopic
>1,500 = Presumed ectopic
<1,500 = Indeterminate: follow serial B-HCG levels in 48hrs (if no peritonitis)
Increased >66% = normal IUP
Increased <66% = Ectopic
Increased >66% = normal IUP
Increased <66% = Ectopic
First trimester abortion
Ectopic pregnancy
Comorbid diseases in pregnancy
Subchorionic hematoma
Vaginal bleeding in pregnancy 
First Trimester Abortion
Abdominal pain in pregnancy
Complete Abortion