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Since you got pregnant and miscarried, your husband doesn't have problem and you don't have problem to get pregnant from the surgeries. Sometimes the cause is not known. Have you tried Clomid & artificial insemination?
It is different from IVF. Artificial insemination is take semen, concentrate it, and make it enter into the uterus with the syringe. Did your doctor find the cause? Do you have ovulation problem?
You should try clomid plus IUI (ntrauterine insemination) three or four cycles. If they don't work, you should have IVF.