I had once iui resulted in chemical pregnancy no reasons for infertility i need advice whether to repeat iui or move to ivf married 3 years?

Infertility: Consider underlying causes including thyroid disease, pcos, and elevated prolactin if this has not been evaluated.

Difficult choice: 6 cycles of IUI on injectable medications costs around the same as one cycle of ivf. One takes 6+ months and ivf takes 6 weeks. Here is the "rub". 6 cycles of IUI is not as successful as 1 cycle of ivf. So it is a choice. By doing iui, you "gamble" that it works in 2-3 attempts and save money; but if not, than ultimately it costs more because when IUI does not work, you have to go to ivf.