I have been feeling Braxton Hicks for about a month now. WWWWAAAAYYYY earlier than when I was feeling them with Cambria. I don't know if I just recognize them now, since I know what a contraction feels like, or if I'm having them more frequently. I'm not too worried, because they say that a woman's uterus contracts throughout the entire pregnancy, it just takes a while for mommy to recognize the contractions.
I had quite a few today though, and when I have more than one in an hour I start to worry... I really don't want to go into pre-term labor, but no mom does, and I'm sure that's a common worry.