Weight gain

I was about 150lbs before I got pregnant and now 180lbs at 7 1/2 months along. The Dr said I'm fine and on track but other people are making me feel so insecure about gaining that much weight. They always say you should only gain 20-25lbs. Which I'm at 30 with 10 more weeks to go. Anyone else feel this way ? I'm a first time mom and don't really eat that poorly. I just eat little snacks here and there but it's mostly fruit.