Do I need a plan B or I’m fine?

Okay so heyyy my boyfriend mistakenly kinda nutted in me so I HAD to start back on my bc today. I stopped taking it to see if I can switch and saw my doctor on Thursday. She said it was okay to start my pill again because we didn’t wanna wait on a period next month when we don’t know how the pill affected my period after stopping. So I had sex yesterday and had to start my pill again today. The thing is he didn’t nut in me all the way meaning he was just a few seconds too late pulling out but come on.. that’s all it takes a few seconds late pulling out. Sooo just need some advice.. pretty sure someone has been through this before. So please comment❤️❤️