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1.Generally in the period of
pregnancy with breast lumps are due to the ductal ectasia ( dilated ducts) due to obstruction or non evacuation of the milk.
2.Othere possible cause during pregnancy are breast inflammation and
hormonal changes can cause lumpy ness, heaviness and pains.
3.But with BIRAD - 4, family history - i would think in terms of breast malignancy / recurrence.
4.Suggest to get an
ultrasound scan done - that would help to evaluate the lump,its nature,source and extensions. And
lymph nodal assessment at the same time.
5.Suggest to see your treating doctor and get the needful scan and treatment accordingly. In your case malignancy can not be ruled out - needs to examine.
Good luck.
Hope i have answered your query,
any thing to ask do not hesitate to ask.
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