Incomplete implantation: Women who have low levels of the pregnancy hormone B-HCG may have a biochemical pregnancy. As a result, a clinical pregnancy develops with a sac and no heartbeat is established.
Improper embryo transfer is responsible for the majority of implantation failures. Factors such as uterine preparation, timing, and the number of embryos transplanted promote effective embryo transfer. Any deviation from the procedures results in implant failure.
Poor ovarian response: Caused by either decreased prenatal oocyte development or a low number of oocytes in the ovaries.
Poor egg quality might appear clinically as decreased ovarian reserve or early ovarian failure.
Poor internal environment: Anatomic, hormonal, and immunologic problems within the environment in which the embryo implants and fetus grows may cause implantation failure.
Cervical stenosis is a disorder in which the endocervical canal is narrowed or completely closed in certain conditions.
For more information, consult Dr. Deepika Doshi one of the best Gynecologist in Borivali