Help /Plan b

Hi guys!

I just took plan b for the first time because the condom slipped off and we weren’t sure how long it was off for. But my boyfriend didn’t cum. (I was just worried ab the precum)

I am also ovulating. Will it still work?

I’m super nervous about the side effects and what to expect, I keep reading such extreme cases of people not feeling well for weeks/months after taking it?

Please share your experiences and any advice for me. Thank you so much