I got pregnant in October last year. I was examined and everything was normal, but I had a spontaneous miscarriage, so the hospital advised me to start birth control, and I was prescribed 20 progesterone, 4 boxes of birth control, 2 bottles of Doxorubicin and 12 doses of chorionic gonadotropin. Later, I went to another hospital for a checkup at 2 months and was told that my fetus was smaller than normal. By the time I was 3 months pregnant, the fetus had stopped developing and I had a miscarriage. My love and I also had blood potency and the potency was <32, which is normal. I now suspect that this miscarriage of mine is related to the medication used in the previous hospital, can the expert please tell me if this is a possibility? You have had two consecutive miscarriages, called recurrent miscarriages, and the reasons for their occurrence are complex. It is generally believed to be related to the following factors: 1. Embryonic chromosomal abnormalities, which account for about 30.5% to 54.9% of chromosomal abnormalities in early pregnancy. If the couple is normal, the embryo can have chromosomal aberrations. 2, normal cell karyotype, but the embryo is not fully developed. 3, maternal rejection of embryo and fetus: this is mainly due to infected uterine structural abnormalities, endocrine dysfunction or defective immune mechanism. For example, on the maternal side, there are endocrine disorders, uterine dysplasia, systemic diseases, chronic toxicity, etc. On the embryonic side, it is now recognized that: chromosomal abnormalities are the main cause of early miscarriage. Miscarriage with blood type incompatibility is mostly the main cause of late miscarriage. The hospital's measures for fetal preservation are correct, and miscarriage-related immunological tests are recommended.