my chihuahua,has 6 more days before her due date...............since last friday she has been having contractions, but they are not strong enough for her to push yet. my vet thinks she's going to have 3 babies, is this normal for her to have these contractions,this early ? the contractions are visible,and they only last about 3 or 4 mins. she can feel the pain but she is showing no signs of having her babies at this time.........she still eats and drinks as usual.........she stays as close to me as she can.....this will be her 1st litter..