I had done iui on 28 june and my date of period was 12 june. i was ok till 14 june i have done UPT at home on 14 july it shows negative sign and also spotting was starts on 14 but it lasts for three days and on fourth day the spotting was slihtly increased and i had pain in abdomen i was so worries I meet my gynac doctor they done ultrasound . but no any embryo was shown. but gestational sac appears in ultrasound doctor also could not diagnos it. i am so upset as doctor said that my period will stars in 2 days. I dont know what is happening with me. please tell me whether my iui fails or not please.