Eating disorder/drug use recovery 16 weeks pregnant

Hi,

When I was about 9 weeks along, I found out I'm pregnant. I had an eating disorder where I would work out every day and lose 0.5 pounds-1.5 pounds a day. I wouldn't eat anything all day, maybe just one small meal when I really felt like I was going to collapse. I used heavy drugs until I was 7 weeks pregnant, i coincidentally quit before I even knew I was pregnant. (Thank goodness).

But here's my real question.

I'm now 16 weeks along, still clean and sober. I eat 3 main meals a day, and snack. As soon as I found out I was pregnant I have made myself eat but that's not the hard part.

I've gained 15- 20 lbs since I quit using drugs and started eating/stopped working out. I weighed in this morning 20 lbs heavier. I've been beating myself up since.

Of course my baby's health is the main concern. But I need some reassurance because I'm trying so hard to stay away from starving myself and vigorously working out (and I never would do that to my baby).

I've been scared to start working out again, because I get too into it and doing it to be skinny.

Is it normal to gain a little extra weight being sober from drug use?

And having an eating disorder?

What can I do to kick these thoughts out of my head? I quit the habits, so that's all that's left.

(I wasn't underweight quite yet, but I was really close. This baby has saved my life in more than one way. Never again will I have my head that far up my ass)