@Slk3558 Hello and welcome! I'm so sorry for your loss 
I had two missed miscarriages, at 10 and 13 weeks. Both times it took weeks on end and nothing happened naturally, one pregnancy the baby stopped developing around 6 weeks, another was blighted ovum so the baby hasn't progressed at all. So I wouldn't recommend waiting, it may drive you insane.
I had medical management after my first MMC and personally I would never do it again. It was discovered after the event that I'm hypersensitive or allergic to misoprostol which is what they give you to speed up the process. It was truly horrendous for me. It doesn't happen this way for everyone at all, I am absolutely not saying this, but if you read experiences across MN, a lot of them aren't great with medical management. I think mine was particularly bad though tbh.
I had MVA after my second missed miscarriage and I'd choose it over and above any other method. Have you been given that option?
Ask away, we're all sadly very experienced with miscarriage on here xx