Thank you! I have taken many beautiful pictures with it but I just wasn't sure if I should upgrade, I just can't spend more than $1000 right now
Adding to what Big Mike said - I'm one of those who believes that it's much more about
how you use the tool, not necessarily the tool itself (with some caveats for specialized work, of course).
That said, does your current camera body limit you in any way that an upgrade solves? Are there times when you find it impossible, or nearly impossible, to capture an image you want with your current camera body? If you're not being limited by your current body, it's probably not worth upgrading to a "better" one.
On the other hand, maybe you're being limited, and don't really know it yet. If you want more/better DOF for those beautifully blurred backgrounds with buttery bokeh that top wedding photographers consistently deliver, and you can't quite seem to pull it off with your current gear, you may want a lens or two that can deliver with a wider aperture, and they're not cheap. Along with that, a body with a full-size sensor can certainly help as well, over the smaller sensors.
Then there are the darker situations wedding photographers tend to have to deal with, like darker churches and no flash allowed. A lens with a wider aperture will get you a lot closer, so that you don't have to crank that ISO so high and deal with noise issues later in post processing, and the larger sensors usually handle those higher ISO settings without a lot of noise issues better as well - especially on the newer full-frame camera bodies.
So again, with Big Mike, the professional who makes a living, or part of their living, shooting weddings, will usually have the body and lenses that can deliver the goods when the going gets tougher.
And then they carry a second body as backup, just in case the first body stops working for any reason, and it DOES happen. Even if it's just the older, less capable camera you upgraded FROM, if you're going to shoot weddings or other once-in-a-lifetime events for clients, have a backup camera plan that goes beyond whipping out your smart phone.
In addition, that second body can be locked and loaded with a different lens and settings so that you can quickly switch to it as well, and that can be really handy. Imagine you're taking a closeup of the couple with a 50mm 1.4 and suddenly notice a great shot of the bride's father that needs a 70-200mm@200mm RIGHT NOW before the moment's over. There's no time to dig around in your bag, find it, and switch lenses - the moment will have passed. Instead, you simply swing that camera with the 70-200mm up to your eye, focus and shoot.
So, it's up to you to decide if an upgrade is in order or not, but there are lots of things to consider.