Three positive OPKs? What's going on? Help me, please. TIA

Ashley • Mother to 2 beautiful girls.
What's going on? I had a positive OPK on CD 20. Now I have positive OPKs on CD 23  last night and this afternoon today. According to Glow and Fertility Friend I ovulated on CD 20, my temps even prove I ovulated then. So my question is why am I getting positive OPKs now? They're darker than I have ever seen before. Can someone help me out? TIA