Hello You are trying for getting pregnancy and also taking eltroxin for thyroid problem . Now also taking folic acid tablets from last 3-4 months . But your main concern about FERTAB i.e clomifene or clomiphen . I am describing this drug so you will get the answer as you want. Indication==ANOVULATORY INFERTILITY . Adults 50 mg daily for 5 days starting on the 5th day of menstrual cycle OR at any time if there is amenorrhea . If ovulation does not occur , a 2nd course of 100 mg for 5 days may be used commencing as early as 30 days after the previous therapy. Further treatment may not be recommended if pregnancy has not occurred after a total 6 treatment cycles . Side effects== ovarian enlargement , abdominal pain & bloating , blurred vision , hot flushes , breast discomfort , depression, MULTIPLE PREGNANCY or ECTOPIC PREGNANCY , weight gain , nausea, vomiting , fatigue , dizziness , insomnia , rash . If given with danazole it decreases the effect of later one. Overall in my point of view this is a safe drug as far as concerned about overall about health. Hope this information will be helpful for you.