Really weird!!

felica • Mommy of 1 👦🏼 working on #2

So my last injection was June 13th. I still haven’t had my period. I started getting sick last week took 4 test all neg. so I called my dr she said if I don’t start by the 14th to come in. tonight b4 I got in the shower I noticed I have dark blue veins on my boobs and they have knots in the top of them. I squeezed one of my nipples and some white stuff came out. Idk what this means and should I just go in to the dr a week early to find out??