I got an +opk this morning!

Megan
Around 11 am, I've had cramps all day like pulling and twinges. I tested again around 6 pm and it was also positive. It wasn't dark dark, but it was almost the same color as the other line. We dtd on the 25th,27th,30th, 31st, 1st, and 2nd(today). Am on cycle day 16. What are the chances i ovulated today and will get pregnant?