A 25 year old nulliparous woman presents with nausea, lower abdominal pain, and progressive abdominal distension for 1 week. She is otherwise asymptomatic.

Her gynecological history is significant for primary infertility for 2 years. She was started on ovulation induction therapy with clomiphene citrate on the 3rd day of her last regular menstrual period, which was 3 weeks ago.

She is not on any other medications, and her medical, surgical, and family histories are unremarkable. There is no history of promiscuity.