Q: What could cause a miscarriage at 6 weeks?

    A: Over 60% of early (6-12 weeks) miscarriages are due to chromosomal anomalies in the embryo or the fetus, which is often related to the age of the mother, and there is nothing anyone could have done to prevent this.
    Here are the major reasons for miscarriages:

    • Chromosome abnormalities
    • Immunologic problems (for example, anti-phospholipid syndrome)
    • Uterine abnormalities
    • Infections
    • Certain medical conditions
    • Hormonal imbalance (for example, luteal phase defect): less than 5% of miscarriages