Question with lots of detail

[kiann06]

I did round 1 of Clomid 150 mg on Days 3-7. I am on CD33 13 dpo. I got a positive ovulation test on the evening of CD19. My 21 day progesterone test came back as 25 and if I didn't get my positive ovulation test until CD 19 I would have only been around 3DPO at that time. I have been getting BFN on all of the hpt's I have taken. This morning I woke up and was feeling kind of crampy and my bb's have been very tender. I thought for sure AF had arrived but when I went to check it was just a lot of water/creamy/chunky CM with 1 small clot of brown blood. I never spot before I start so I thought this was strange. I also thought that 13dpo would be too late for implantation bleeding. I had a blood pregnancy test done Friday afternoon so I am waiting on the results. Does this sound strange or familiar to anyone? I would love to have some input, I pretty much counted myself out of this cycle.