How long would levonelle (the morning after pill) delay ovulation?

It depends!: The effectiveness of the morning after pill is related to a delay in ovulation produced by the burst of Progesterone that you get from this medication. I would say, in general, that i would not expect it to delay your cycle for more than 1-2 weeks. How long it delays ovulation is similar, but likely depends on whether you took it before, or after you ovulated. Remember to take a pregnancy test!