What is this black dot?

Hi everyone. I’m day 5 post-op, and this stitch just came out to reveal this lovely black dot! I’m thinking it’s just maybe a blood clot as I’ve been solely eating yogurt and mashed potatoes, and ensuring I rinse after every meal… But I could be wrong!

I’m beginning to use the syringe tomorrow to clean - do I avoid this spot or is this the hole itself? I’ll reach out to my surgeons office on Monday but just wanna take precautions :)

Thank you!