Is my dog going into labor or is she just "hormonal".?

hi my question is do u think my dogs going into labor? shes a small dog about 10lbs before pregnancy and we believed her due date was may 17 but now where not sure because it could also be in two weeks we think they only got caught twice and that was in the end of her heat but if they got caught before and we didnt know because they use to sleep together in a crate (hes small too). but in the last week she has gotton hugh and shes not really eatin much and shes kinda acting really sad i just checked her temp and its 99.4 im not sure what her normal temp is. anyways when we breed my other dog a couple years ago she acted this way the day she had the puppies(she had ten). my dog has been acting this way since wednesday. if shes not going into labor how do i make her eat. we leave food out but we also feed her three times aday with puppy food cooked scrambled eggs warm water and a little tiny bit of cottage cheese. she use to eat it but now she wont.