im 36 years old and ny wife 26 years, im married since 4 years but still there is no pregnancy, i make all the test before pregnancy( HySTEROSALPHINGOGRAM-normal, hormonal profile- my wife have elevated TSH- subclinical hypothyrodism- she take thyroxin 75mcg and the hormone level is normal, semen analysis is normal, IUI done one time but failed. just i want to ask about failure IUI and i dont get pregnancy till now and possible solutions thanks