I have done my iui on 31st oct. i was on duphaston from 1st nov for 2 weeks. i have brown discharge 2 weeks after iui. is this implantation bleeding or normal periods ? i had tender breasts, bloating, but all these have disappeared? i have mild cramp?

A person can't tell: Wait. A positive pregnancy test can tell a woman that prior spotting was actually implantation spotting. It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result about 3 weeks after IUI (3 weeks after when conception might have occurred), or 1 week after missing a period.