Ovulation pain?

Ive never really paid attention to it so in not even sure if ive felt it... Ive looked It up on google and it just said pain on either side ... I was just wondering what kind of pain... Is it like sharp needle pain, cramps,aches ... Like what? Lol im having aches here and there it goes from one side the the other later so im not sure and I was suppose to ovulate a couple days ago which I think I did and my period is suppose to start tomorrow according to glow but its always a little off. Please help me understand lol