Yellowish cm ? Early sign of pregnancy ? (Sensitive photo)


I had sex on the day that I tested positive on my ovulation test. So far the pregnancy tests have been negative but today I just noticed this yellowish cm, I’ve had it for a few days now but it’s more today. I’m also have light pain on the left side of my stomach. Could this mean anything ? I’m about 10 DPO. My period is due on the 2nd.