Weight gain with #2

With my 1st child i started out at 125lbs and when i had her i was 180lbs. This time i started at 165lbs and 12 weeks in im sitting at 162lbs. I dont really get sick, just a small amount of nausea here or there. Im giving into cravings but also trying to eat normally still too (not going overboard or "eating for 2.") Im just a little nervous as ive had some ED tendencies off and on for the last 10 years and im glad im not gaining a lot of weight but i know weight gain is part of pregnancy and want to do everything to keep baby healthy. Im hoping the 2nd trimester i finally start gaining some weight but also not too much, its a strong back and forth in my head.