What could this be ?

AB

I woke up this morning with 4 pimples ( at least that’s what I think they are ) on my face. One on my chin, one on forehead and two on my nose. They do itch a little. But then when I shower I saw a bunch more all over my stomach and my legs. Few on my back. The ones on my body look more like insect bites to me. Some itch but some don’t. I also have a pimple or whatever it is on my head too and that one doesn’t itch but it does hurt. Anyone know what it could be? Anything to do with my hormones maybe? I am 4 months pp and currently on my period. Should I go see a doctor or dermatologist?

Pic below is of my flabby belly lol.