Can cervix dilation exercises help expel retained placenta?

Please help me.11-12 days ago i took mifepristone. 24 hours later 800mcg misoprostol. And then 4 more doses of 400mcg misoprostol in 3 hours interval. after that, the next morning when i got up the embryonic sac with the embryo inside it came out of me without a single drop of blood. Only white fluids. I was 12 weeks pregnant. The embryo left me, sadly other pregnancy tissues and placenta did not. I did not bleed at all, not even a single drop of blood came out of me before or after the sac came out. After that, i waited and i am still waiting, no sign of blood. My placenta did not come out at all. No sign of any blood clots too. And no bleeding happened too. It has been 8 days today, since the embryo with the sac passed out of me. Still i did not bleed.I saw in google post partum hemorrhage happens due to retained placenta and people die if this is not treated. Placenta and pregnancy tissues did not come out. And did not bleed at all. Has anyone experienced this? I took more doses of misoprostol to make the placenta come out but they did not work at all. No sign of a single drop of blood still. Yesterday i touched my cervix and noticed that it is not dilated. Not even 1cm. Will exercises and more other things women do before labour for cervix dilation work for me? I am confused so much because my embryo came out, without embryo but with placenta inside, will my cervix dilation exercises work? Can anyone please answer what they think about this. I am overthinking so much. If anything similar like my condition happened with anyone, did the placenta and other pregnancy tissues come out from you after waiting? Is there anyone who waited naturally and become successful making the placenta out? It has been 8 days so i am worried. i want to wait 1 or 2 months more. I want to see if my cervix dilates though my embryo passed. I have read in google. that during menstrual period the cervix dilates very less. Only the blood can pass then. So here is another question i need to know the answer for, if i start bleeding after some days, is there any chance that my cervix will dilate very much then and the placenta will come out? Please tell me if anyone has experienced the same. Was waiting worth for anybody?