My Dr hasn't said anything about my weight gain so I guess it's nothing to worry about but I think I…

My Dr hasn't said anything about my weight gain so I guess it's nothing to worry about but I think I may be gaining too much? My pre-pregnancy weight I'm estimating was between 115-125. I'm 31w4d and weighed in at my apt today at 152. I've gained 7 pounds since the 17th when I weighed myself at home. All the weight is in my belly, boobs, and I'm guessing butt (starting to get stretch marks on my hips). I eat rather healthy unless I'm craving fast food or something sweet. But I guess if its something to be worried or concerned about my Dr will say something?