I am 37 years old. I conceived naturally last year but the case was detected as blighted ovum and doctor advised for a medical termination. After that incident, I conceived again and suddenly in five and half months, the formation of a subchorionic haematoma ruptured my amniotic sac and fluid came out. I had to terminate my baby boy this time naturally with medicines. My periodic cycle is normal but after the last incident, I am suffering from mild lower back pain during ovulation and starting of periods. Kindly advise me how much gap should I maintain for my next pregnancy planning and what precautionary tests should I do before pregnancy. I am regularly taking folic acid supplements.