One sore boob... bfp?

Angeline

So I'm about 10 dpo today and have noticed my left boob has become more tender/sore to touch and feels fuller than my right. I'm trying not to symptom spot, but usually before AF, both my breasts tend to become sore at the same time, so it's weird to me that it's just one-sided. Has anyone experienced this and gotten a BFP?