Welp, you're in no hurry to make a decision- you can wait ten years if you want, and even then, you still don't have to breed, haha. Don't feel pressured to get a foal out of her, just enjoy having such a beautiful horse!
I kinda have a bit of a rant- maybe that's not the word for it, 'rant' sounds angry to me, lol. Okay, I guess this is just more of a 'thinking out loud' kinda thing. Bear with me, this could get long....
I'm not aiming this at anyone specifically, it's just something I've observed and therefore thought about. I know the whole breeding thing is a bit of a trigger on here for some people, so I don't want anyone to feel like I'm attacking their decisions/opinions/ beliefs. Overall I think that it's your choice what you do with your horse, whether that's breed to your neighbors stallion for free, spend most of your savings on a top notch stallion in another country, or never breed your horse at all.
Anyway. For some reason with mares breeding always
comes up. Especially if they have good conformation and a good pedigree. It's like people feel obligated to breed their horses if they can breed.
Personally, I think that first you should enjoy your time with your horse, and treat them as an individual and not a mare that could
have a good baby. If they're getting old and you really want to have their foal, then go ahead, why not? But there's no hurry- yes, you need a vet check to make sure they can still have a foal, but I think that if I was going to breed a mare, I would do it after we've been together for a while, because I really want the foal from her, not just because she was well conformed or had a good pedigree. There are plenty of well conformed horses out there with good pedigrees. What really matters is that you love the horse, not their possible progeny. (unless it's your business... lol)
A good question to ask when breeding comes up is, are you thinking of breeding now because you truly want the result, because you just want a foal, or because you just think you should?
My mom, for example, has a mare that she rescued from being sent to slaughter. Her owners kept hiring crappy trainers who would treat her badly, and it got to the point where just walking down the driveway with a saddle on had her dripping a trail of sweat. She would rear and try to spin around in sheer panic, it was a horrible thing to see. I was only about 10 but I still remember it, I couldn't forget that- it was the first time I saw a horse so afraid that she couldn't even function.
My mom took her in and eventually bonded with her, and now she can easily tote little children around the trails without a problem. Unfortunately, she's also about 23 now, and starting to show it. My mom has thought about it and she has decided that she could not bond with another horse like she did her Molly. She wants to breed her to have a foal before she passes, and this will be the last horse she plans to ever have.
This is all my opinion, as I am not and never will be in the breeding business, but I don't think you should feel pressured to breed her. Enjoy her as who she is.
And she is definitely a beautiful horse, I think she would produce a beautiful foal, especially with that stallion. Good choice!