Do I need a lawyer for an uncontested divorce?

My wife and I are separating and we have no children together. I thought we were in agreement on everything and I filed for an uncontested divorce on my own behalf. She is now saying that she may need some financial support from me until she gets back on her feet and gets her own place. I don’t earn much more than her so I don’t know how I could be made to pay alimony. What happens if this uncontested divorce becomes contested and if it does, do I need to file a different type of divorce action? Should I get a lawyer? I am Russian and live in Miami, Florida.