Late by 6 Days (excercise?)

During my cycle, I exercised more than usual due to the fact that it was spring break. I pushed myself harder since I’ve been wanting to gain my summer body. I have gotten my period in 6 days and my cycle is currently on 36 days. Usually my cycle is 30 days. I’m concerned as to whether or not my exercise delayed my period. I did have unprotected oral sex during my cycle as well. Should I be worried about pregnancy? I’ve also been noticing discharge as well when I use the bathroom.