Red Spot On Breast

I have a red spot that looks kinda bruised on my breast. The size of a nickle. It has a lump in it, that is in the skin tissue. My gyn was slightly concerned so he sent me to get an ultrasound. It did not look alarming, but they are going to do a biopsy soon. With all that I have read, I am worried about Inflamatory Breast Cancer. The spot is not going away, and from what I have read this is usually misdiagnosed in the beginning. Just wondering if I am worrying about nothing. (ps- Breast cancer is in my family)