Slight pink blood

Hey so. I just went pee and when I wiped I notice a light pink streak on the toilet paper. Wiped again to see if it was still there and it was. I'm supposed to ovulate Sunday or Monday have had negative opk's. Not even close to positive. This is my second cycle off birth control and I'm on cd 12. Also having some mild pains on my left side. Is ovulation around the corner still or did it pass? The spotting through me for a loop.. never had it before ovulation. Thanks ladies in advance!