Sore breasts?

So I have had sore boobs since about 4 dpo and I'm now 11 dpo and they're getting increasingly sore. Usually I only get sore boobs about 5 or so days before my period starts. Well now glow is telling me sore boobs that last this long should be evaluated and now I'm paranoid something might be wrong? pregnancy is a possibility but I tested this morning and bfn. I'm going to test again in a few days. So my question is.. Is it normal to have sore boobs like I do once every so cycles? Is it a pregnancy symptom? Have you ever experienced this?