As a trans-woman, I obviously haven’t been pregnant, but, in the nineties, when I was having a lot of sex, it seemed that there was always a “cheezey” discharge from my nipples. The left had more discharge, but my right nipple, to this day, not only send thrills through my entire body, but, especially with the added stimulation of a man’s beard-stubble gently pricking the breast-skin around the nipple, well…as mentioned in another piece on Medium, Nipple-Gasm!!!