Moderately Sore Breasts

Stephanie • Kellan Seth born 12/4/16
I'm 3DPO and I've had super sore breasts for a few days now. This is new for me. Usually I get this right before AF, which doesn't start until 5/19....I know it's probably way too early for me to even think about testing, but I'm just curious. Anyone else have this issue right after your fertile week??