Hi welcome to the health care magic You are having irregular periods... For that investigation needed as follow.... -pelvic examination -pelvic USG -Serum TSH, prolactin, testosterone estimation -ESR and CBC -RBS -Smoking, stress, weight loss history etc According to cause specific treatment given For Hormonal imbalance drug that you have been prescribed like synthetic progesterone can be used.... If needed vaginal swab taken to rule out infection After treating any organic cause if present and after regularizing period frequently intercourse around ovulation will lead conception... Take care If frequent intercourse occurs than molecular study needed for rule out chromosomal Abnormality which is common cause of abortion Consult gynecologist for examination with keeping all this in mind