I have been ttc this month and been tracking my ovulation on strips of eBay and they went dark but not to dark for a positive and then light again on my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> on iPod it says 24 was the start of my ferlity window but these tests are coming back light now I had sex during last week and don't it this weekend both days is there still a really great chance I have caught my ovulation and will get pregnant partner is gunna pick up some different tests to make sure