Mold &Mildew! Rush Move w/ Baby on the way!

We recently moved into our new apartment on April 10th. I resigned from my job on the 27th. I used my final checks to get situated into our new space to welcome our son, due on June 6. We found out the apartment is riddled with mold and the lingering smell of mildew. The rental office has a very nonchalant attitude and disregarded our concerns, blaming the smell on us being on the bottom floor. "It just smells like a basement" and "Get an air purifier" ,  is what they said to us. What a lack of concern for me and my family's well being. Either way, we have to move AGAIN because I have already been exposed to the mold spores for a number of weeks, and I have my baby's things in here and he's due in 3 weeks. Very stressful series of events.