Beardies don't need friends just so you know... in fact it stresses them out if they have another beardie with them. Sometimes so badly it kills them.
The only time they actually come together is for mating, thats it. And when the eggs are laid and covered up the female leaves the babies forever, when they hatch and if one or two unlucky babies happens to cross its mother or fathers path then it will become a nice dinner or breakfast for her or him... or really any other beardie for that matter, even its siblings.
You'll need to get a separate enclosure ASAP as I doubt your ready for hundreds of babies that require thousands of crickets and other bugs monthly.
On average a single baby bearded dragon eats about 60 bugs every single day until about 4 months of age.
Even if she gets gravid I'm sure he'll keep mating with her until she's too weak and dies. If beardies don't have enough calcium in their body the eggs will take calcium from their bones.
Just so you know my female laid a clutch of 27 eggs about 30 days ago of fertile eggs and that took about 100 grams from her.. she was skinny, didn't have an appetite for a few days, she just looked terrible and was very lethargic.
Fun fact though, they mated over a year ago when they were only about 6-7 months of age. And she only now laid the eggs most likely because she wasn't as mature back then and didnt have all these hormones she does now, also beardies hold sperm in their body for quite a while.
This wasn't planned at all... in fact it was quite a surprise when I looked at the eggs with a flash light out of curiosity.
She laid a second clutch just yesterday, Im hoping this is her last clutch but they can lay up to about 6 clutches... sometimes even more. Luckily they were all infertile as there was 28 eggs.
Also from these two clutches i've learned something, fertile ones take a lot out of the female and infertile ones don't. My female only lost about 40 grams with this clutch.