29 weeks. Holy weight gain!

So I had a prenatal check up today at 29 weeks. I gained 6lbs between 25 weeks and today 😨😨😨 up until 25 weeks all I had gained was 5lbs. So now I'm up 11 total. My doctor told me I had been a rock star about keeping it under control until this month and he suggested that I aim for no weight gain between now and my next appointment (3 weeks) by having a seltzer water before each meal to fill me up and continue my walking. I'm 5'8 and weigh 187 now. I just feel like total shit and like I'm going to lose control of my weight gain. This was me last week at 28 weeks. I don't feel like I look that chubby.