My sister is going through a miscarriage. Before I visit a clinic can someone let me know if I can let this miscarriage pass naturally (without any treatment? Here are all events occurred: mobile conception 30-1-2023 feeling very nauseous 1-2-2023 feeling very nauseous 2-2-2023 feeling very nauseous; cramps and body pain 3-2-2023 miscarriage started; heavy bleeding started from vagina and big clots of flesh were coming out; cramping 4-2-2023 heavy bleeding at times and skin (clots of flesh) discharge; painful cramps 5-2-2023 ---"--- 6-2-2023 ---"--- 7-2-2023 ---"--- 8-2-2023 vomiting (4 times); heavy bleeding and clots discharge still continued; painful cramps continued.