Weight Gain (35+3)

Had an appointment with my doctor today and discovered I've gained the most weight in these past 3 weeks than any other time between appointments.. the doctor said not to worry about it, but I'm already 10lbs heavier than they wanted me to be. I've gained 35 so far.. hoping that weight gain will slow down these last 4 weeks, anyone have experience with this. Will I just double in size or stop gaining?!

Trying not to overthink it too much but I also don't want to be too large!