Wierd bumps in skin during pregnancy?

Ok, so while I was pregnant, I began to notice some little bumps in my skin. They appeared on my lower back, sides of my torso and my thighs and are pretty small - maybe up to 5mm in diameter and sort of reddish brownish in colour. They only came up while I was pregnant and i think they are starting to fade now, but they are still there and i dont know what it is.

Does /Did anyone else have these too, or am I a freak that needs to see my doctor?
My auntie thinks I have some wierd disease, though I dont think so. I am not worried, just curious if this is normal or common. I always forgot to ask at all of my apppointments.

thanks :)

I got a sort of a rash when I was PG with Jackson called something Rosea I think which is apparently more common when pregnant, it started off with a heralding spot on my shoulder which was like a sort of a dry ringworm looking thing, and that spot caused the other patches on my skin, was harmless apparently. Maybe something like that?

Thanks Min.
I googled it, and it looks like the same thing.