Should I take Belara and Duphaston?

Hello. I had my last menstruation on 28.01. I took in February duphaston which was supposed to stop bleeding from the 13th day of the cycle however it did not help me and the bleeding intensified. After 8 days, the doctor said that I should leave. It is 23.02 And I have a continuous pink tribe. For this appeared a cyst on the left ovary. Today the spotting has intensified and they are with an admixture of blood, besides, my breasts hurt. It feels like I'm going to get the correct menstruation, but on the visit I got the information that my endometrium is completely removed. I got the information that if you get bleeding I have to start taking hormones "Belara" And if not from 03.03 continue to take duphaston. However, I do not know if I already have menstruation or not. It's very hard for me to say that. If I start taking Belara and find that this is not the beginning of the cycle, my problems can get worse? It is possible that the cyst will grow? I know that they can lose effectiveness when it comes to security, but it does not play too much for me because I still protect myself.