The Effect of Vaginal Speculum Type and Retention Time on Pregnancy Outcomes During The Embryo Transfer Process

Investigators aim to investigate possible affects of a speculum material and retention strategy on IVF pregnancy results. The study is planned as a prospective, randomized control trial. All of the clinical managements, including the embryo transfers, will be performed by the same gynecologist for homogeneity of the study. Only the cases with good implantation potentials are going to be included. Therefore, transfers with cleavage embryos and blastocysts rather than good and top quality will be excluded. All patients included to final statistical analysis will receive the same luteal support.