Left breast still tender after period

Kaylee • I am an equestrian who loves animals.

My period ended about a week ago, and since, my left breast has still been very sore. I don't remember bumping it but it is very sore as if I'm during PMS. It's very concerning. I'm currently ovulating and I'm not sure if ovulation can cause this?? My right breast feels fine, although it's maybe *slightly* tender if I press on it.