Change in hair?

Has anyone experienced a change in their hair since becoming pregnant? I'm talking about thicker, fuller, not shedding as much. I'm talking an actual change in texture. When I was a kid, I had pretty straight hair. Around puberty, my hair got wavy/curly. It's been that way since. Now that I'm pregnant, it's straightening out again. I'm wondering if anyone else has had this or something like this. Will it go back? Ahhh! And anyone else notice more grays? Thanks for your thoughts.