I started testing when I noticed fertile CM. The top test was Monday morning, I thought I was close and tested later that day (one below) but it got lighter! I continued testing and got the bottom one Friday but they've since continued to lighten. Was my first, top, Monday one positive? Was I just late to start testing?

Edit- I'm breastfeeding my one year old and still haven't had my period return. We want to ttc and I'm trying to see if I'm ovulating or if there's any chance I'm fertile. Is it a waste to keep taking ovulation tests with no cycle days to ground me?