What's going on with my nipples?!

I stopped breastfeeding my daughter about 2 months ago and my breasts have completely deflated, along with my nipples?! What is this? Is thus considered an "inverted nipple"? My nipples looked nothing like this before.. This is my second child, second round of breastfeeding.. I'm pregnant with our third. I'm worried what they'll look like after I finish nursing this one. 😰