I'm 8w6d today and I've been noticing marks like these on my breasts. The pic doesnt really show how dark they are but u prob get the picture! My chest started getting bigger even before I knew I was pregnant and a week or 2 ago I've been seeing these marks. I'm also a first time mommy so this is all new to me! Should I put a cream on them? Should I be worried about them? Any suggestions or comments appreciated! Thank you!