So confused! OPK results. One tmi comment.

So ladies OPK testing is new for me and I believe I have been doing it right, let's see what you think. (Trying to figure out when I actually have o'd)
Cycle day 14 and 17 positive OPK but faint in between. Cycle day 21-23 major pulling pains and thought maybe implantation (6dpo) but then again I could be just now o-ing because it has been accompanied by ewcm. Cycle day 21-23 negative OPK. Now at cycle day 26 I have a super positive OPK. Way darker than I've seen before. This is driving me crazy! Has someone experienced this? I'm also on clomid this month for first time.