5 positive opks in a row?!

Katie
Starting February 4th I got positive opks until yesterday (February 9th). My question is when should I count as the day of ovulation? I'm out of opks and can't test today but today my cm is creamy. Last night I had severe uterus cramping and it's still a little tender today. I stopped temping a week ago due to being sick and it was throwing it off. Any insight helps. Thanks!!