I would definitely do research into this and talk to your pdoc (and t again as well). You've been on needs for a long time. As open eyes said, for a long time there was a huge push for meds being the best treatment. But she also pointed out that such a long time on meds can change the way your body and brain work.
that said, I've never been as stable as I have off meds. I've struggled with depression all my life (take that with a grain of salt, because I don't remember the first 15 years very well). I went through the gamut of meds and med cocktails trying to stabilize. None of it worked, and much of it actually made me much, much worse. The doctors I saw were about to force some pretty scary treatments, but I was adamant on trying more specialized and therapy - focused options (I had found once that talking helped me more, so I wanted to try it with specialized providers). I was able tp wean off the meds (took several months op accomplish, and was very difficult), but it was the best decision I ever made. Now, when I do have a crisis, it's nowhere near as damaging as it has been in the past. I'm able to stay out of the hospital and pull myself (kicking and screaming, but also with support) out of my hole. I think more clearly, and my horrid times don't last as long as they used to. I have to fight hard to keep doctors from trying to put me back on meds when I do wind up in the hospital, but it's been worth it. (Many doctors told me I was hopeless, and that I would wind up not only on meds for life, but in a facility for the rest of my life, that scared the crap out of me)
It's a scary process, and really trying, but it can work for some people. It's something worth thinking about. If you do decide to do it though, plan. Have back up plans for your back up plans. Make sure everyone knows the plan, and at least your husband can be supportive in times of crisis (because they will likely come, but they can be dealt with). And it would be a huge help to have your t's support through it all (my t got about 30 calls a day at times)... also, I started the taper off while inpatient, so I had access to medical services 24/7, which was hugely helpful when I needed to up the doses of meds because the withdrawal symptoms were horrible, or I needed something else to help ease the withdrawal. Also, if you decide to try, make sure you have back up plans for child care in case there are days you can't handle the responsibility.
Good luck either way. I know you've been through a lot.