Strange?...Could it possibly be.......? or is it in my head????

Me and my partner decided to start trying for our baby this month, it was all a little confusing at first as we were only starting out. So to make things a little easier we looked up online about ovulation..and using a prediciton calculator i calculated i was ovulating around Monday. True to them my CM turned egg white and sticky around sunday night and monday. (apparently this suggests ovulation). to cut a long story short, we had the thursday before, but due to him being away over the weekend we couldnt have until the monday morning. but anyway by tuesday the egg white CM had gone. I umed i had ovulated. Now today (Thursday) i have found that my are not so much sore, but rather sensitive to touch. yesterday i had some slight niggles in my lower left abdomen, down into my , not in a lot of pain, just noticable twinges. now im wondering if this in anyway shows i may have conceived, or is it in my head. cant help but wonder. thank you x