<s>[INST] Hi,I am a bit worry and anxious actually...today was my day 13 post iui. I am still taking my tab duphaston 10mg BD since 13 days ago. But I start having slight pinky then light brown to dark brown when I wiped since 2 days ago. Am I having my period sign or is my iui fail? For the past 13days I did not felt any changes except body hot and breast getting sore+pain more on and off since last week. I did not do any test for now. Thanks [/INST] Hi, Feature of body heat breast soreness are due to hormone side effects, of Duphastone. These features of pink or brown discharge could be featured in early pregnancy-due to the process of baby implanting in uterus or also of an impending periods Only way is in a day or 2 get urine pregnancy test(first sample of urine after you get up), if you see even a faint second line, contact your doctor & continue the medications. Hope for the best. All the best Chat Doctor.  </s>