Should I take Plan B??

Mariette

So my boyfriend came inside me for the fist time and I'm on the pill and I take it religiously everyday at the same time but I'm kinda worried I might get pregnant still... On the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> it says that I'm at a 7% chance of getting pregnant so idk what to do. 😬😥