My wife is 26 years old, her periods comes on 10th may date ,after sex at 16 may ,she take next day a tablet of ipill, then again period 25th may, then check home pregnancy test it is negative and after 1 month and 5 days there is no any symptoms of pregnancy and home pregnancy result will also be negative bt there is problem her periods had not come after 1 month and 5 days. Toady upt test negative, please suggest what do I do now.