Do my OPKs look like they're getting darker?

Kayla

I know that I don't have a positive OPK, but I took clomid this cycle and I can't tell if I have line eyes or if they are actually getting darker each day. Glow has my predicted ovulation day as the 18th. I had a miscarriage in June and this is our first month trying again since my husband was away at training for 8 weeks.