Actually, that used to be true but now we have self-pollenating types of papayas readily available.
I have "Red Lady" that makes complete flowers (with both male and female parts) so you only need one plant to get fruit. Got it at Lowe's.
Not sure if a plant grown from seed will be self-fruitful, but it's possible if the fruit that you got the seed from was that type. As Hetty says, you can't be sure until the plant blooms. Send us a close-up picture of the flower when that happens and we'll help you. Meantime, give it lots of fertilizer and water when it doesn't rain.
