Weight gain

Ladies, I’m getting worried about weight gain. I’m about 23 weeks and I’ve gained 20lbs. I’m 5’6” and starting weight was 118. My doctor hasn’t said anything but I’m so worried I’m gaining too much. I don’t workout but I do go for walks and I try my best to eat as healthy as I can (I try to follow like 80/20 but realistically I’m probably more like 70/30 with healthy food vs junk). I have an appointment coming up soon so I’ll bring it up but I’m worried about it.