Cheap OPK!?!?!

I use the Dollar Tree brand opk. On the packaging, it says that if your test band is equal to or darker than your control band, then you'll ovulate in the next 24 to 48 hours. This is were I get confused! The above picture is my results from like 10am. I'm not sure if this would be considered a "+" or not. And then I was wondering.......so as I grow closer to my ovulation day, will the line get darker or start to fade away? And if it only 24 hours for the sperm count to regenerate (snickering), why BD every other day??? FYI We BD just in case this morning lol.