Ulipristal
"Had unprotected intercouse on day 16 of my 28 day cycle. Took ella 2 days later. Experienced mild stomachache for about an hour after, a bit of dizziness but not much else. Period came 1 day late, with no other symptoms. Highly recommend it, had way less secondary effects than with levonelle which made my period 4 days+ late and gave me horrible cramps. Good luck and don't stress too much!"