Victoria, yes I do have a female voice which is the product of years of trial and error, and lots of research online, both with commercial female voice programs and many you tube videos from individuals with VERY convincing female voices about how they do it. I'm convinced that anyone can learn it, but buckle in for the long haul, it takes time and perseverance..and there is LOTS of useless information along with lots of great information out there.
I have posted about this before, if you're interested I can provide links to the techniques that have helped me the most. There are some common denominators among the various methods that work. In my case, if I am on the edge of being read as a man..but they aren't sure..my female voice tips the balance to "woman"..or at least puts enough doubt in their mind that they treat me as one!
Whether to put in the effort to develop a convincing female voice is an individual choice..it's complicated :-)
