Weight gain

I'm 22 weeks now. My pre-pregnancy weight was 209lbs and in the first 3 months I lost weight and dropped to 201lbs. Now I'm at 215 lbs. So when I talked to doctor about this she said that as I didn't gain any weight initially and the baby might be catching up on the weight now. But when I look at online recommended weight gain for pregnant women for my BMI it says I'm in the obese category and I should gain around 11-20 lbs in total. Looking at that I'm already hitting the goal.

So I'm just not sure about the proper weight gain.