The present disclosure teaches an assay to determine the likelihood of a successful implantation of an embryo into a female subject leading to a pregnancy. Enabled herein is an improved assisted reproduction technology protocol based on a prognostic evaluation of pregnancy outcomes. Taught herein is a composition comprising reagents required for the prognostic evaluation. Taught herein are assays comprising determination of levels of the biomarkers IL-8, G-CSF and/or VEGFA in a biological fluid sample taken before embryo implantation.