Hello,
These can be due to hormonal effects but if there is any unprotected intercourse then pregnancy should be ruled out. Hence to confirm the status of pregnancy, I suggest you to test for pregnancy by a highly sensitive pregnancy test 10 days post ovulation with a sensitive ( 20 - 25 mIU ) pregnancy test. Also then I would suggest you to get your serum HCG levels estimated since this is more specific than urine for pregnancy tests.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
A test will be the only thing that will tell you if you're pregnant or not. No one else can tell you that. Discharge with a little blood could be caused by a number of things. yes, pregnancy could be one of those but so could an infection, or your period being about to start as well. Take a test adn see what it says.