Welcome to the forum. For future reference, if you have a read of what you've actually written, you'll see that there is no way that anyone can know for sure - we aren't psychic.
I can tell you that "someone" was right. If you have male guppies in the same tank as females, then the females will spend their lives pregnant, dropping fry every 4-6 weeks. If you only have females, they will have fry drops every 4-6 weeks until about 6 months after they last had contact with a male.
As for when you can expect fry, well, since you haven't posted any photos, I cannot even start to guess, but as per the above, it will be sometime in the next 4-6 weeks. Note, however, that fry make very tasty food for fish, and if you have little plant cover in your tank, it is unlikely that any will survive. Very often, even the mother will turn around and eat them.