Opk's

Bianca • 25 years old. We have our second little one on the way, due 23 Feb. And it's a boy
Can anyone share their experiences with the opks they use and wich one works for you. I got the Clearblu easy read and just wondering whether it really is as accurate as it claims. Never used this brand before. I usually ovulate around cd 14-16. I usually use our pharmacy's brand of cheapies but they were out of stock.