Had sex this morning and there was a little blood it's only been 7 days since ovulation is there anything wrong?

Blood after sex. doubtful, i wouldn't worry too much unless it persists.
Post coital bleeding. Check this link. http://blogs.webmd.com/womens-health/2009/07/postcoital-bleeding.html I hope this helps. If you have more questions contact me on my Virtual Practice at www.healthtap.com/dryetimyan.