28-Year-Old Female Presenting for Pregnancy Confirmation

A healthy 28-year-old female presented to the emergency room for confirmatory pregnancy testing. The patient had a positive home pregnancy test 3 days prior to presentation and endorsed a last menstrual period of approximately 4 weeks ago. She experienced self-limited vaginal spotting 3 days prior and on present evaluation was asymptomatic. The patient was not undergoing infertility treatments. The physical examination was unremarkable. Laboratory results showed normal white blood cell count and hemoglobin, and a positive β-human chorionic gonadotropin of 34,600.