New tests make a world of difference!

So for the past few months I've been sticking to one brand of ovulation prediction kits. And I've been not so thrilled with the results. You have to compare the intensity of two lines, and I've found it very difficult to say for certain if it's a positive test or not. Well this month I'm trying a new brand. Wow! Night and day. I got a circle yesterday saying not ovulating, and a smiley face today, which means I am. Fingers crossed for good luck this month.