Ovulation cramps

I dont usually get them. But this morning i was woken up out of a sound sleep haveing really sharp pain at my left hip took.an opk and it wasnt a 30 secs later a strong positive came up. Thing is im still havin these cramps they are hard to describe but are more focused in the center of my lower abdomin (below my belly button) has anyone else had this go on? Its our 8th cyle ttc