Noticed blood in stool around ovulation time and been pressure in anus all week (my period starts tomorrow). i generally have very painful periods.

What's the question: I'm not sure what your question is but blood in your stool is never normal and you need to see your primary care doctor or a gastroenterologist to look into this. The painful periods can also be addressed by either your primary care provider or your OB/GYN. Best wishes.

See a doctor: Blood in the stool is not normal. Please see your doctor to have this evaluated further.