Genetic Factors
a. Chromosomal abnormalities in parents or embryos can lead to miscarriages.

Anatomical Issues
a. Uterine abnormalities or cervical insufficiency may contribute to pregnancy loss.

Hormonal Imbalances
a. Conditions like thyroid problems, PCOS, or luteal phase defects can affect pregnancy.

Immune and Blood Disorders
a. Antiphospholipid syndrome and clotting disorders are potential causes.

Lifestyle and Environmental Factors
a. Smoking, alcohol, stress, and infections can increase miscarriage risk.

Next Steps
a. Consult a specialist for evaluation and testing to determine specific causes.