ewcm with brown spots?!

Al
I am on cd12 and I am having clumps of ewcm since cd9. I noticed the past 2 days the ewcm had two tiny little lumps of brown (so on cd 11 and cd 12) Has anyone ever experienced this and what does it mean? 
I had sex 2 days ago and had cramps on my lower right side yesterday for about half the day now they are gone.