I had unprotected intercourse in ovulation days and i took anellaone an hour later im concerned,is there anything else to do for not getting pregnant?

Ella should work: Ella, Plan B, and other emergency contraception pills can alter the menstrual bleeding for the cycle in which Ella was taken, and sometimes the next cycle too. One should be sure to check a home pregnancy test about 3 weeks after sex, because Ella works most of the time, but not all of the time. An IUD placed within 5 days of sex also prevents pregnancy, and keeps working into the future.