Weight gain stress

I need to vent. I try everything to keep the weight gain as limited as possible but it's so hard. 😞 I gained 8 pounds and I'm 20w4d pregnant. I have a BMI of 32 so I need to keep the weightgain as limited as possible. I'm so obsessed with it. I weight myself every morning and the mood I have during the day depends on it. I feel stupid because I tried so hard getting pregnant and now when it's actually happening I find it hard to enjoy it :-(