So I was wondering, we had a natural IUI done on 4 May, however I had OPK (ovulation predictor test) done, two solid lines from 3 May -8 May (weird). My Period was due 17 May and still has not showed her ugly face. I have no period cramps and I usually do before AF, could I be pregnant? Also, I took the HPT(cheap one), said neg. What to do, I do not have a beta scheduled, advices? anyone...thanks for support!