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Inspite of the fact that a couple is living together and having unprotected sex for 1year or more and if the female doesn't conceive it is a case of Infertility and in your case it is secondary infertility
.So you need to get investigated to find the cause of infertility and get treatment for the cause.Fertyl
is a medicine to induce ovulation but for conception the fallopian tubes should be patent and this can be tested by doing HSG(hysterosalphingography) also the semen analysis
report should be normal.If both these reports are normal then you should still try Fertyl 50 for another three months.