Maternity uniform pants

Laura • I am 28 years old and my husband and I had our first baby in August 2016! Baby number 2 is on the way!!

I'm a firefighter and Paramedic and am 5 months pregnant. I've been trying to find navy blue maternity pants but can't find them anywhere. They have to be uniform style, no scrubs or sweatpants are allowed by my department.

Does anyone know where I can get some?