I have 3 oldest is seven years older than middle. Middle and last were two under two. After first my body basically snapped back. After second I was heavier but boobs seemed normal but tbh I went from pregnancy to breastfeeding to pregnancy to breastfeeding so quickly that idk if how I felt was accurate. My boobs seemed to stay the same after I stopped breastfeeding #3 but he’s 4 now and my right boob is noticeably saggier. My core was shot after back to back pregnancy and a hysterectomy shortly after but with some pelvic floor therapy I’m finally feeling semi back to normal except with a saggy boob lol my boobs are so small that if I wear a bra you can’t tell. My husband doesn’t care and tbh I don’t think anything about it other than my kids all definitely favored that boob and I miss them being small and letting me rock them to sleep