Petechiae on breasts & belly?

I have no idea why it’s here. It’s been there as long as I can remember I think. It’s on the inside of my right breast. Top of my left breast. And one on my belly.

I’m on no medications (I was on antidepressants but it’s been well over a year since I’ve taken them). I’ve given birth. But I don’t understand where they’ve come from or why I have them? I’m scared honestly.