Help?!?

I took a plan be 24 hours after my bf came inside accidentally. My periods 9 days away according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>, yet i feel sick have slight cramping and back pain, and ive been extremley moody. Any thoughts? I took the plan b a week ago. They day we had sex <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> said i was ovulating, but idk. And dont tell me i should have used protection or bc or w.e because thats not what i asked nor do i want to read any condescending comments. Please and thank you.