Sir I had sex on 14th august and took unwanted 72 after half an hour and she had his periods expected on 15th august but unfortunately it's 21-22 august she has light spotting, unlike her normal periods so we decided to conduct a pregnancy test at home it was fortunately negative, we thought it to be implantation bleeding and is worried enough as we are not planning for a baby. Please tell us what we need to do after this should we conduct more tests at what frequency or what to do next. Very urgent!