###Human: What is the advisable frequency for taking Ipill after unprotected sex? ###Assistant: Hello. If you have taken Ipill after first intercourse activity and it was taken properly, in proper dose and timings without vomiting, then actually ovulation or fertilization would have stopped already for this cycle. By rule, no need to take another pill if still, no bleeding is there after the previous pill. But if you are not satisfied with the above points then you can take another pill but it will further disturb cycle and will have a withdrawal bleed in coming 1 to 2 weeks. After withdrawal bleed, you will have next period, not as previously scheduled as the body gets accommodated with externally induced hormones.