Question about gum disease and setting up appointment?

I'm pretty sure I have gum disease. I have all the signs and symptoms of periodontitis. Anyways, I have no dental insurance and I'm pregnant and I mostly need a consultation. I have two questions though. My first is, is it common for dentists/periodontal specialists to give you a consultation? I don't make a ton of money and i really need to get this done soon, but I have little to no money left after bills so if I could get a free consultation to know my price it would be good. Also, should I make an appointment with a dentist or periodontal specialist? If I'm pretty sure I know I have the disease?