Study Procedures Women who are believed to be eligible for the study will be asked to visit the Assisted Reproductive Technologies Center at the University of Saskatchewan (ARTUS) or the Genesis Fertility Centre in Vancouver, British Columbia for a pre-study appointment. At this visit, inclusion and exclusion criteria will be reviewed. If patients meet all study criteria, consent will be obtained and each woman will be randomized to either the control group (i.e. treatment starting on day 4) or experimental group (i.e., treatment starting on day 1). A medical history and vital signs will be performed. Study drug administration, diary card use and potential adverse reactions will be reviewed at the pre-study visit. Diary cards will be used to monitor study drug administration, adverse reactions, and concomitant medications used during the study. Diary cards will be reviewed with the patient by study personnel throughout the duration of the study. Serious adverse events will be reported by the investigators to the drug safety group of the study drug manufacturers and the Biomedical Research Ethics Board, in accordance with Tri-Council Policy guidelines.