Laparoscopy improves the hormonal environment in pts in whom the LH is very high. This not only improves the chance of fertilisation but also the chance of a successful pregnancy. Laparoscopy improves the chance only if LH is high. In fact if you do undergo a laparoscopy; I would recommend you to try a couple of more cycles of IUI if all other factors are fine. If LH values are ok; you may opt out of laparoscopy and directly go in for IVF