Could i have an ovarian cyst or be pregnant?

Ok well usually my periods are regular (around 30-31 days). Oct. 23 had a 6 day period, Nov.22 i had a 6 day period. in December my period didnt come unti the 27 and went off on the 1st of Jan. My next period didnt come until Feb.4 and was off on the 9th. Now that i think about it i was stressing about a problem in december as well as in Jan. but now everything is ok. I had l discharge and slight twinges so I think I ovulated around feb 22-25 or 26. My bf and i had after the club on the 25( technically the 26th because it was around 3 or 4am) we had again early morning(4 or 5am) on the 28th and later that night around 8pm. On the morning of the 1st of march we had twice... last night i had twinges in my stomach around my belly on and on the right side close to the pelvic bone, the pains werent severe but i had to take 2 advils to ease the pain a lil. all day today ive been having to use the bathroom alot. ive been looking up symptoms online and some say pregnancy, some say diabetes and others say i could have an ovarian cyst. Can you tell me what you think??...