Breast lump

Jessica
Currently 7 weeks pregnant and my breasts have increased quite a bit and have become quite sore..anyway I was feeling the bottom of my breast as it was feeling very bruised and I found a lump. Mentioned this to my doctor on my first appointment about my pregnancy and she had a feel and found it too. Now she wants me to get a sonogram. Has anyone else had the same thing? My mind is going over board with worry and needing some reassurance. Honesty please though.