Morbidly Obese, Pregnant, and Trying to Lose Weight

I'm currently 5'6" and 285lb.

Before getting pregnant I lost 20lbs successfully in a few weeks. Since finding out I'm pregnant I gave up on my diet with the excuse that I'm eating for 2. But obgyn said make sure I'm not starving myself but she would be happy if I only gained 10lb this pregnancy. I already gained 5. Lol.

My question is, has anyone successfully maintained or healthily lost weight while pregnant? What worked for you? Where did you find your best motivation? You'd think growing a human being would be enough motivation for me... Lord, help me.

Thanks for the support!