I have 3 laying females too... my chestnut, olive, and my sneaky star jade who has never let me see her lay a clutch but I've seen her out of the water enough times to know that she's laid at least 1.
I have a few larger clutches in this round, they're all a week old, and the test showed them to be infertile too, but I figured I'd keep them a bit longer and see anyways. *sigh* So now I've got 4 dud clutches sitting around on styrofoam, 1 obviously dud on the tank, and a new one from my chestnut that was laid last night. My chestnut girl is my favorite so I'm hoping they're fertile... like this one will be any different than the other clutches. Of course, she laid it right under the filter outflow-y thing. I hate it when they do that!
Oh well. You probably don't care about my rants.. so I got pictures!

My dud clutches on the styrofoam.

Albino cory, Fred's head, and 2 golds, my old beat up store rescue, and a DSP.

My chestnut girl checking out the real estate with my olive and her jade suitor. This is the most accurate picture of Hazel (chestnut's) color.

Chestnut and olive, who has managed to shake off her suitor. My chestnut looks really yellow, but it's just the flash. See above picture for accurate coloring.

Fred the bala shark, a danio, a gold teenager-snail, and my olive girl.

The most likely dad of chestnut's newest clutch, my LSP.. who isn't quite an LSP as he has yellow AND purple base, as you can see, with purple stripes. But LSP is the closest I could come.
Enjoy.