Who found their own 'lump'

My puppy dog use to take a running jump to sit on my knee one night in March last year he jumped at me but hit my left breast quite hard and day after thinking I was sore in that breast I found a lump . I had a mammogram in the previous October it didn't show up then and didn't show up the day I went for my mammogram but showed up on the ultrasound and so the journey began.