welcome to the site sonic
All you needed to do was look on the breeding Oscars page
www.oscarfishlover.com/index.php/Breedin...ding-Oscar-Fish.html
Fertilized Oscars eggs will be brown/tan. Unfertilized eggs are white. Having said this, fertilized eggs don't always hatch, I don't know the reason for this, could be water conditions, I really don't know. Oscars don't always get it right the first time so don't be too disappointed. Did you actually see the Oscars laying her eggs? I must inform you that two you females will act exactly the same as a breeding pair, i.e. Going through all the breeding rituals, shoveling sand, cleaning the rocks, lip locking.
The sexual organs are quite different, the males is a spike, with females is an oval shape.
Please also remember that Oscar's lay hundreds, even thousands of eggs, you may well get several hundred young that grow very quickly. Before you know it, you are over run with little Oscars, so it would be a good idea to have a plan on what to do with them.
Apart from that, good luck and keep us posted with pictures if they do hatch