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Your history suggests you are suffering from PCOS. PCOS is multifactorial hormonal disorder which leads to anovulation
. Try to lose weight by diet control and exercise. Clomiphene
( clofert) is the drug of choice to induce ovulation. It is usually started with 50 mg and dose is gradually increased till 150 mg if there is no response. If even after dose of 150 mg you don't ovulate then you may need ovulation induction
injections or laparoscopic ovarian drilling. Don't lose hope with failure of first cycle. Positive thing is you have ovulated with 100mg clofert. Your treatment is on right track. Trust your doctor.