Weight gain plateau

I'm finishing up my second trimester (26+2 today) and I haven't gained weight the last few weeks. Actually, I'm down a bit. Did anyone else find themselves at a weight gain plateau around this time? Overall, I'm up for weight but it's definitely not a steady gain. More like gain three, lose two, gain 1, lose 3, etc. I see doc on Friday, but I'm wondering about other experiences!