Late period after morning after pill?

Hello! My last period was on 15th of september (it's usually at 28 days) and on 6th of october I had intercours and the condom slipped off. We've got it out easily, but we don't know if any cum got into my vagina. My boyfriend suggested I take the morning after pill even though it was after ovulation. I took it 18 hours after the intercours.There are many opinions if it was useless to take it or not. We panicked and didn't wanted to risk because I'm 17 years old and he is 18. I took Escapelle, a morning after pill available in my country (Romania). I want to know if my period is gonna come in time (12th of october) or when should I expect it? Some people say it will be on time or even earlier, some say that there's no way I can know when I'm gonna have it ( if I will have it this month ) because I would've taken it for nothing. What is your opinion? Was it taken for nothing ? My period is gonna be late or in time? 

If you took it 18 hours you’re probably good. And it will mess with your period that’s normal. You may even have more/worse pms, it’s all normal with that pill. 

What are the chances for my period to be late with more than 4 days from normal?

Did you bleed when you first took it? I’ve taken it twice. The first time I bled a few days after taking it. The 2nd time I skipped that month all the way around. The next month I had it, it was just really heavy. If you’re 4 days late and concerned take a pregnancy test just to ease your mind. If it’s negative, just go with it. 

I didn’t bleed at all or any side effects