What is DGs policy for making a commendation for pregnancy?!

I Dealry in fact need help with this i can not stress it enough. Im 25 weeks pregnant and had got a letter from my doctor of all the stuff I can't/can do or need while I'm pregnant. Well couple days ago my manager had called me to tell me thats per to our district manager and HR they can't make any a commendations for me. All the letter said was I cant been on me feet for consecutive hours at a time have a chair for me to sit when needed and i cant lift more then 10 pounds. OK, to me that would male sense to have me sit at the registers help customers (stand to do that) and whatever light work i can do like recovery. Both SM and ASM have been amazing on making sure i can do what i need and to have me sit when needed, (I dont sit down much and when I do its for 1-3 minutes) all my stuff still gets done! But what do I do dose anyone have this problem?