GATA2 is expressed at critical times in the mouse uterus during pregnancy

► We confirm GATA2 as a P4 responsive target in the uterus. ► We examined GATA2 protein expression during early pregnancy and decidualization. ► GATA2 peak expression in early pregnancy co-localizes with the progesterone receptor. ► Expression of GATA2 persists through embryo invasion of the stroma in surrounding decidual cells.