Vanishing twin ??🙁😕😟

Hello ladies .. Last few days were like hell for me ! Earlier I was having brown spotting and US showed only one sac with no fetal pole. HCG levels were high like 15000. After 2-3 days suddenly I had a gush of blood with a big chunk. I rushed for blood work and US and doctor informed I now have 2 sacs. One is empty and the other one with only yolk sac. My numbers are still rising and now they are up to 25000. Doctor informed it could be vanishing twin or I am having miscarriage. I am still having red spotting when ever I wipe .She asked me to wait for 2 weeks for another US. Please share if any one of you had any such experience and what was the conclusion 🙁🙁