I am 34 weeks and only have a net gain of 5.6 lbs. As long as your child is okay, that is all that matters. If you have a serious problem ask for an ultrasound to check baby's measurement
They say you can plateau out with weight towards the end, even loose a few pounds. If it were an issue they would have said something.
Hey i just had the same thing! I have 60Days left and within the last 2weeks have lost 2pounds :(