Im going through it as well!! Constantly wondering whether this time is the REAL thing??
I started getting mild BH at 36 weeks quite frequently, now they seem to be stronger but less frequent. I didnt have any BH with DS and if I can remember these pains are similar to the first ones I got when I went into labour so maybe everythings just toning up so when D day arrives things will go a bit quicker!! fingers crossed!!
Goodluck and I hope everything goes smoothly for you.