Successful pregnancy outcome after fresh embryo transfer in a dual stimulation cycle - a case report.

Controlled ovarian stimulation by antagonist protocol sometimes presents unpleasant surprises in the form of unexpected premature rupture of follicles despite well-timed daily administration of the antagonist. In such cases ovum pick up cannot be done, dual stimulation of the next crop of follicles may be pursued to salvage the cycle. A 'freeze all' strategy is usually implemented in all cases of dual stimulation because of embryo-endometrial asynchrony. Here we present a case where dual stimulation was followed by fresh embryo transfer with a successful pregnancy outcome.