Ovulation Test

I used the Walmart brand ovulation tests. The first time I used them, I had no trouble reading them at all. This box has not been that way. There are seven in a box, this is the sixth one I have used. The others looked like this or has no lines. A few days ago I got one like this, except both lines were a little closer to the same color. I put that one as LH Surge in my app. I don't know what to put for this one. The test line is very faint but clearly there. My husband is coming home from a trip tonight and I was hoping to get it on, but we can't if I'm ovulating. I definitely have some CM but not in a ton nor is it an egg white consistency. We are Catholic and do not use contraceptives, just Natural Family Planning. We are not ready to conceive. I have been using these tests to make my cycle tracking more accurrate and help us better know when we can and when we can't have sex. What is your opinion on this test? I don't want it to be positive, but that's what it is looking like to me. What do you think?