Significant ovarian masses complicate 0.2% to 2% of pregnancies. Although the risk of malignancy is low, complications resulting from distention, rupture and/or torsion of the adnexa can be a significant concern. As laparoscopic procedures improve and our experience with laparoscopy in pregnant women increases, more and more patients with these complications find that they can forego laparotomy and manage their condition safely through laparoscopic removal of the mass. The subject of the case study presented here was a 39-year-old woman diagnosed with bilateral adnexal masses during the first trimester of pregnancy. A bilateral ovarian laparoscopic cystectomy was performed at 16 weeks with a favourable outcome. The pathological diagnosis was “mature cystic teratoma” on both sides. This case demonstrates that laparoscopic surgery can be performed safely and effectively in pregnant women with an adnexal mass.