It is provided a vaginal ring comprising a drug-loaded core comprising a progestogenic steroid compound, a estrogenic steroid compound, and an EVA copolymer having a vinyl acetate content from 25 to 35 wt.%, wherein the progestogenic steroid is dissolved in the core material in a relatively low degree of supersaturation； and a non-medicated outer layer of EVA copolymer having a vinyl acetate content from 5 to 15 wt.%； which is stable under storage at room temperature for at least 12 months. It is also provided a process for the preparation of the vaginal ring disclosed above.
