Levonorgestrel
"I had sex the day before my period and the condom broke. We immediately went to purchase the emergency contraception. The next day I went to Planned Parenthood to see if I should also purchase Ella. The doctor told me since I was a little above the weight for Plan B, I should take Ella also as a backup. The symptoms I received was Nausea, Fatigue, Excruciating Headaches.. And about a week or so after taking the pills, I received a horrible case of a yeast infection. Causing me to go running back to Planned Parenthood to get a prescription for Yet another pill. 3 weeks after taking Plan B, my cycle had finally came (4 days earlier than usual) and it was extremely light. The next week (today), to be safe, I took 2 ClearBlue Plus pregnancy test and they were both Negative!!!!!!!"