I'm a FTM and every now and then today my belly hardens and gets uncomfortable. I am 21 weeks and have had some on and off Cramping today , nothing really painful it's more of a strange heavy feeling .Is it Braxton Hicks? Or is it just all the growing that's going on . I have been feeling her move really for the first time All evening but I have serious anxiety about early labor lol I know I'm ok I just would like some comments in what Braxton Hicks feels like.