I am 28 weeks apparentlt but I measure at 32 weeks?? My concern here is Ive been having odd…

I am 28 weeks apparentlt but I measure at 32 weeks?? My concern here is Ive been having odd contractive pains the last two or three days, and the last two days my dog has suddenly been cuddly, and calm, laying behind or next to me for a couple hours at a time insteadof playing sround like a hooligan. She watches me and makes sure Im following her when we go upstairs, or she goes ahead and makes sure Im not falling down stairs. Could I be close to labor??