do I need to use plan b? I'm not on the contraceptive pill yet but I have it. I was waiting for my period to start it and that's supposed to be soon according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> app.

but last night me and my boyfriend kind of had sex. I was a virgin and we planned on waiting but couldn't and we didn't use a condom. but he didn't cum inside me as we stopped and we don't think he pre cums as we've never noticed it before.

could I be pregnant? and if so would starting the contraceptive pill now stop the chance of pregnancy or do I need to take the emergency contraceptive pill