"i had unprotected sex march 20th &amp; march 21th went to go buy plan b but they had ran out so bought opcicon one-step took it and had all the side effects. at the end of march had a second period i had it the 12th &amp; last week of the month (i can&#039;t remember what day ) and no period all month of april.  i have been cramping and warm body throwing up and tender boobs. i&#039;m scared i could be pregnant - i have not taken a test yet but will soon and i&#039;ll let y&#039;all know if the pill worked!!!"