Plan b after 4 years on birth control

I’ve been on birth control for a little over 4 years and I decided I wanted to get off the pill and give my body a break after I get my period which I did. However 2 days after my period finished my partner and I had sex with a condom and it did tear I didn’t want to stress out and take any risks so I straight away went and got a morning after pill. I haven’t taken a morning after pill before so I don’t know how it works? Will my period still be on track or should I expect to have it earlier? I did only just finish my period 5 days ago and took the pill two days after. If you could help in anyway to better my knowledge please do! This is also the pill I was given And my cycle