Yes, all pregnant women experience a significant change in their bra size. Breasts become swollen and enlarged as early as during the first trimester because of an increase in the levels of estrogen and progesterone. The growth normally continues throughout your entire pregnancy.
Will pregnancy increase my breast size?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 02/28/2018
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)