Help, I need opinions on symptoms ive never had before!

So I am somewhere between 11 and 13 days post ovulation. I have been cramping off and on for the past 4 days (which is weird for me as I only get cramps on day 1 of my cycle). The cramps are very low and dont feel like my normal period cramps. Now yesterday one time and this morning one time when I wiped I had the SMALLEST tinge of blood. Nothing since blood wise. I am still cramping. I am on my first cycle of Clomid. What do you think this is? Its these cramps that are really confusing me because they do not last long, just like pinching pains for 30 seconds every so often. HELP