Really bad butt cramps

Im on cycle day 14 and it says my fertile window ends in 3 days

But right now i am experiencing painful butt cramps and some abdominal pain.

I also have been experiencing lots of discharge (tmi)

Is this all normal? I did have unprotected sex 3 days ago and on new years <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>💀😶.