Hello, thanks for using health care magic there isn t much you could do rather than stay healthy and avoid stressing up. The Past history of c section or abortions do not have great impact on causing miscarriages. So, you should not be scared or worried cause stress can rather cause miscarriage. there are causes of miscarriage that no matter what we do, we can t stop it. However, in such cases, its even a good thing. such causes include fetus with chromosomal defects or some malformations. Causes that could be prevented include infectious causes, malaria, low level of progesterone etc. For this, you need to be followed up by your doctor or obstetrician. Best regards Dr Achuo