Doctors upset about me Gaining weight 22wks 6days pregnant

Stacey • Mother of 3 boys and 1 girl, I also have a step-son

I went to the doctor today and they are upset with me about how much weight I have gained, I started off weighing 114 lbs and now I'm up to 150lbs and I'm 22weeks and 6 days. Should I be worried about it? Or should I just let it go? Could something be wrong?

Any advice would be great, thanks!

BTW this is baby number 4