How much pregnancy weight gain can you control?

I’m currently about 15 weeks. I’ve consistently weighed between 145-150lbs at five feet prior to convincing which puts me at a bit higher bmi. I live a fairly active life and for the most part mindfully cook/eat. My first doc appointment they said I should aim to gain between 15-25lbs. Knowing that obviously if I become sedentary and eat rows of Oreos I would gain in excess, but for those who have fully been through it, how much can you control your pregnancy weight gain?