1. Attend for review with your Specialist/Consultant and ask specific questions: His or her opinion on possible causes responsible for treatment failure What further tests should be performed to throw more light on possible underlying causes Was the endometrial thickness adequate durng treatment cycles? Was embryo development satisfactory If Blastocyst culture indicated? Would seeking a second opinion help? 2. Investigations to Consider: Blood test for Thyroid Function - TSH, Thyroxine, Thyroglobulin Antibodies, Thyroid Peroxidase antibodies Full Blood Count - Haemoglobin level and other indices Blood test for Vitamin D & Calcium levels Infectio...