I had sex on the21 took after pill on the22,my period is due the 24 and i missed it 1day late, an i had spotting how many days will my period be late?

Emergency contracept: If your period was due on the 24th and you had sex on the 21st you should not have been in your fertile period, if you normally have regular cycles. The emergency contraception may make you're period a little different this cycle, so I'd try not to worry and consider more reliable contraception. If you haven't had your period in another week, get a pregnancy test