Steroid cell tumours of the ovary are one of the rare sex chord tumours that account about 0.1% of all ovarian tumours. The tumour can be categorised based on the cell origin. Steroid cell tumours, not otherwise specified (NOS) is named when the origin is not known but it accounts about 60% of the three steroid cell tumour subtypes. It is often associated with virilisation symptoms as most of these tumour secrets steroids, particularly testosterone. Here we present a case of 36 year-old lady who was para 0+1 who presented with complaint of secondary subfertility of thirteen years that was associated with secondary amenorrhea for thirteen months. Initial assessment noted that she was obese with acne and hirsutism but the initial ultrasound only noted polycystic ovaries. However after a year, noted that there was a large right ovarian tumour with solid and cystic components on both ultrasonography and CT scan and she subsequently underwent right salphingoopherectomy and omentectomy. Histopathology confirmed the diagnosis of steroid cell tumour NOS. Noted that after a month of operation, she started menstruating and subsequently had regular menses. We also observe improvement in her acne and hirsutism. Two years after the operation and after three unsuccessful intrauterine inseminations after the first year of operation, she had conceived spontaneously and delivered at term followed by another spontaneous term pregnancy.