Dealing with weight gain

Jeannette
Any other expecting mamas having a hard time with their weight gain? 
I'm petite and an average of 112lb. At my last appt on Aug 3 I had gained 15lbs. and was at 23weeks. Now at 25 weeks I'm sure I've gained a few more lbs 😣
Before pregnancy and at the early stages I was really active and felt great, once the tiredness hit I didn't do much but sleep. The last few weeks I've had more energy and have started walking again but I can't get over how much weight I've gained! 
I don't over eat and my doctor says I'm on the right track and to keep doing what I'm doing. It's just hard psychologically knowing that I've never been this big before. 
I know that I'm carrying a baby and my body has changed, but it's just hard some days. I don't feel good about myself and the uncomfortable feeling is exhausting. I'm worried that this is going to start to take away of the positive and beautiful experience I'm supposed to be feeling.
My husband says that I still look the same , just pregnant and I'm not fat. But it just doesn't help. Especially when you see all these other celebs or social media "stars" that are pregnant and look the same, just with a belly. It's hard not to compare to other women and feel like I'm supposed to look like that too. 
I was excited to be pregnant during the summer and be in a bikini and at the beach, but I can't bring myself to put one on! 😭
I keep asking myself questions like "should I be this big? Am I the size as other women at this week in pregnancy? How much more weight am I going to gain?" 
I have 15 more weeks to go! And don't want to go over 30lbs...
Is anyone else going through the same thing or have similar feelings?