Weight gain

I just need to put this out into the universe. I'm about to start my 20th week of pregnancy. My husband and I wished, hoped, and prayed for 3 years for this little miracle. 
For some reason I'm allowing weight gain anxiety to steal my happiness and excitement. 
I've gained 20 lbs. I feel fine in my skin, and am actually loving my pregnant body... but the number on the scale makes me cry.  I don't even feel like I'm eating like a crazy person. 
I have another midwife appointment tomorrow and I'm scared to get weighed. It's all I can think about. 
What is wrong with me? 😥