Rude Co-Workers?

Felisha • Im a FTM with Di/Di twins! Due May 12!
This is my first pregnancy, I do not know how most pregnant woman are treated but my coworkers have been awful to me! Some have made comments to me like "your pregnant, not handicapped" because I asked to work in the back where there was no cigarette smoke and it's less stressful. (I work at a casino.) My supervisors have been wonderful and have helped my adjust into a better "pregnancy environment" which they do with every pregnant employee. But my peer employees are awful to me and treat me like dirt, even ones I was previously friends with. I even have a manager that hasn't spoke to me since she found out I was pregnant... Is this normal? I feel like I have not done anything to deserve this. I am blessed to be pregnant (I was told I was never going to be able to have kids) let alone being pregnant with twins!! I feel like this isn't normal and my feelings are really hurt and  I hate going to work! Has anyone else had this problem?