The aim of this study is determine vascular endothelial growth factor levels and angiogenesis/vascularity from hysteroscopic endometrial biopsies which taken from patients who has Recurrent Pregnancy Loss.The endometrial vascular endothelial growth factor levels will be measured by immunohistochemical staining methods due to office hysteroscopic endometrial biopsy after the menstruation at follicular phase of menstrual cycle.