I lost a baby at 18wks pregnant, and had blood work prescribed for me. The blood work showed that I was protein s and protein c deficient. They said my levels were 34 and 35 and should be 70-100. We are wanting to try to conceive again. How much folic acid should I be taking? I am currently taking 800mcg in a prenatal vitamin but noticed that some are recommending 2-5 mg. Also, this was rare that I tested this way because we already have 3 children. Should my children (boy and 2 girls) all be tested for this?