Lump after Biopsy

So 2 weeks ago exactly I had a core biopsy for calcifications behind the nipple. 

for the past 10 days I have a large lump abut 5cm round...is this normal? I have no bruising anymore nor pain but this hard lump which gets bigger towards the end of the day...

im scared this may be something untoward as I never had a lump before just calcifications. I’m currently waiting for an appt for a VABB as my results came back B3 so need clarification. Can they do that on a site where a lump now exists? (I’m going away nxt wk anyway so it won’t be done until mid June anyway I guess..the consultant said there was no hurry) 

thanks