Ella® (ulipristal acetate) is a progesterone agonist/antagonist emergency contraceptive indicated for prevention of pregnancy following unprotected intercourse or a known or suspected …Ella jane fitzgerald (april 25, 1917 †june 15, 1996) was an american singer, songwriter and composer, sometimes referred to as the first lady of song, queen of jazz, and lady ella.She was noted …Emergency contraception morning-after pill ella® is a prescription strength medication that helps prevent pregnancy.It is 85% effective on any day you take it, up to five days after unprotected sex.