Why are they getting lighter?

Jade

Does anyone know why the lines might be getting lighter? I haven’t ovulated yet my cycles are normally 5+ weeks long so it normal for ovulation to be this late in my cycle. I was having a load of twinges around cd18 and sorry for tmi but have lots of clear cm right now so why would the ovulation tests be getting lighter? This is my first month <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> I know I’m supposed to test a lot more than once a day but I only found that out yesterday