OPK Positive?

Katie

Hi ladies! CD 20 and Glow is telling me this is positive. I’ve had faint test lines since CD 12 and thought I had a possible positive on CD 16 but four hours later it was faint again with no O symptoms! I just took this test this morning. I do have O pain on the right side, EWCM last night, and my temp dropped. Could this finally be my positive OPK or should I wait until it gets a little darker?