thanks for your query.
There could be various reasons for a miscarriage
Genetic causes, chromosomal anomalies, abnormalities of uterine shape and size , intrauterine infections, hormonal
Clexane is a blood thinner and is recommended for pregnancies where there is evidence of previous pregnancy
loss due to conditions where blood clotting is incriminated.
Some centres have a practice of giving it empirically to patients with prior obstetric loss.
Please go alongwith the advice of your consultant and have faith in the prescription.
Also take adequate rest, folic acid
supplements and minimize stress levels.