From the experience of my 2 post-op pregnancies, I was expected to gain 30-35 lbs and increase my calories 300-400 a day (not double them or do anything totally crazy).  You cannot be going into ketosis with pregnancy, as that is bad for the baby's brain development so you do need carbs.  You can totally gain the weight needed for your pregnancy and lose it again.  Don't compare yourself to his exes.  You are totally different person.  I maintained through 2 pregnancies and a lot of very stressful events before I regained some, then I lost it again.  You have perserverved through a lot and you can keep your weight off after pregnancy. 

~ Renae

I'm 40 and pregnant with my first post op baby--2 pre op ones who are 10 and 12.  But MD considers me much less risk since my weight and blood pressure are normal.  I'm 31 1/2 weeks along and have had no complications unlike my 1st two. 

Hi Alice. Thanks for sharing (very helpful info) and congrats and best of luck.

Cherill

First,.congrats!! I'm 12 wks. My nausea just let up a few days ago. but I went through it hard!! I couldn't eat anything but crackers. The dr have me zofran. It works!!!!!! Wish you the best. Pm me anytime luv.

Ive lost 100 lbs and im terrified of weight gain. I got pregnant on birth control. Bummed out. I already have a 2 and a half yr old. Need encouragement from mothers who have gone through this which many of you have. Getting pregnant early out of surgery.