How many is too many?

slc040

My first pregnancy, I never had Braxton Hicks.  With this pregnancy, I have.  I am 30 weeks along and have BH about once an hour or so.  They never hurt and I have had no problems during either pregnancy. My question is, is this too many BHs to be having?  At what point should I consult my doctor on whether this is normal? I wouldn't normally worry about it but this is completely out of the ordinary pregnancy experience for me, so I'm a little concerned.