Pregnancy and hair

So this is probably the stupidest question that could ever be asked, but as a possible first time mom I am clueless on this subject. AF is 3 days late and I have not tested yet but will be soon since I have been having almost all of the common pregnancy symptoms. Anyway, on to my question. Have any of you ladies experienced a change in your hair while pregnant? My hair used to be silky soft and straight. I couldn't get it to do a thing. Now it's slightly curly and to me does not seem as soft either. I feel like I'm crazy.