Sore breast.

Carly
So my husband and I have been TTC to conceive for 3 almost 4 months now and I want to be pregnant but I'm not obsessed with it yet  (I don't think! Lol) Yesterday I woke up and my right breast was so sore. Has anyone ever had this? Only one breast sore? I'm 5 days away from taking a pregnancy test it says. No other symptoms though :(