Am I ovulating? Help, this is so confusing lol

My husband and I have been together for going on 8 years, and just bought our first house in May. We have been ttc our first since then, and I have such a hard time figuring out when I am ovulating! I have gotten to a point where I take an ovulation test every day, not just the 7 days recommended in th package (talk about costly), and sometimes there is no second line, then other times there is a line about this dark (but never as defined as the reference line). because of that I never really know... I'm also tracking by bbt, (ie the thermometer in the background haha), but I can never seem to correlate the two... I know I just need to break down and buy digital, but I'm curious on everyone's thoughts on this test. Everyone here seems so knowledgeable! Thanks ladies!!!