Pregnancy body—breasts, etc

Kalo

I’m 21 weeks pregnant and I’ve already noticed changes in my boobs. Small and faint stretch marks and then my nipples are turning brown around the rim going into my nipple. My boobs used to be pale pink, almost my skin color and I loved them. Plus my nipples are getting bigger :/ I’m just having a hard time adjusting and seeing my body change before my eyes. I just want to hear others experiences and what theirs did during pregnancy and even Afterwards? Did your stretch marks fade? Did your nipples go back to the same size is used to be? Did the color of your nipples go back? How do you prevent stretch marks? Do creams or using lotion on them everyday really work?